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Selected email from AVweb members. Contributions for possible publication in AVmail are welcome at editor@avweb.com. The views expressed in this section are strictly those of the contributors, and are not necessarily shared by AVweb, its staff or management.

NOTE: If we select your email for publication, we reserve the right to edit it for length and to excise language we deem offensive. We will post your name unless you specifically ask us not to do so.

January 2000

Mrichard F. Schilf

31 Jan 2000

Beware A Nigerian-Style Flying Fraud

As you may or may not know, each personal check you write carries with it a risk of having someone gain access to your bank checking or saving account and transferring your funds with an e-check. Your check containing name, address and account number (read routing number) can be used by anyone coming in contact with that check to make purchases. Unlike credit card companies, banks, under Federal Reserve rules, bear no responsibility. Rather it is the responsibility of the merchant (or a thief posing as a merchant) to verify the authenticity of the purchase.

My wife and I are witnesses to this very thing as it happened to our son.

Moreover, your bank will not turn-off electronic access to your account. In fact, they will tell you that they cannot turn-off electronic access. Believe me we begged the president of our bank to do just that and that we didn't want nor had any need for electronic transfers. Their answer was maybe you could find a small, privately-owned bank that would do it for you.

You can easily verify what I'm telling you -- just call your bank, call the local Federal Reserve representative. Nigerians indeed!

Finally, contact your local congressman and get his opinion -- mine would never respond. Do you suppose there's a reason for this?

AVweb responds...

Yipes!

--Mike Busch, Editor-in-Chief

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Al Sipe

31 Jan 2000

Turn Coordinator vs. Attitude Indicator

I recently started studying for the Instrument Rating and thus have been looking at instrument panels a lot. Occasionally over the past 10 years of VFR flying, I have been confused by apparently opposite turns showing on the turn coordinator and AI.

I was half asleep looking at an ad in a magazine when it struck me why it is so easy to confuse the turn direction between the AI and the turn coordinator. The white airplane in the turn coordinator "banks" in the same direction as the bank of the aircraft. The white line that represents the horizon in the AI "banks" the other direction. (I know that the horizon actually stays level and the little orange wings of the simulated airplane "bank" the same direction as the turn coordinator.)

My question is this: Why are the human factors on this so bad? At least we could either make the horizon line a different color or make the turn coordinator airplane a different color.

I know that I can learn to live with it but it seems this is something that should have been fixed 50 years ago. I wonder how many pilots that learned to live with it lost it when the chips were down.

AVweb responds...

It couldn't have been fixed 50 years ago, because turn coordinators are a relatively recent innovation, introduced (if memory serves) in the late 60s or early 70s. Personally, I've never cared for the presentation of a turn coordinator. I had one in my Cessna 310 for awhile and disliked it so much that I wound up yanking it out and replacing it with a classic turn-and-slip indicator. The old-fashioned turn needle offers far less cognitive dissonance with the attitude indicator than does the "modern" turn coordinator. I'm with you on this one, Al.

--Mike Busch, Editor-in-Chief

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Frank Atzert

31 Jan 2000

Kudos To AVweb

I retired from American Airlines several years ago. I presently have a daughter and son-in-law working for that company, plus one son with Delta and another with USAirways. My wife and I met while both working for American and our wedding party was made up of numerous friends who were with American, so we've always joked that our children had inherited "the airline gene." As we all know, once it's in your blood you can't easily forget the old ties.

Recently an AA friend put me in touch with AVweb.com and I've been thoroughly enjoying the fact that it's been keeping me up to date. Naturally I've passed your website along to the kids and numerous others. Keep up the good work, and thanks for helping me keep up with what's going on in the wonderful world of aviation.

AVweb responds...

Appreciate the kind words, Frank.

--Mike Busch, Editor-in-Chief

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Bill Blunk

31 Jan 2000

Low-Level Military Training Routes

Whomever the group is that feels that 2,000 feet is low enough for training should consider this.

A. Low level will be a part of military training until we are 100% stealth.

B. I am sure Canada and Mexico will lease us some lands and airspace at an exorbitant amount of money. This will only take more jobs out of the country.

C. How is this group going to stop the lone wolf (Iraqi or possibly Chinese) fighter pilot who sneaks at low-level to Grand Forks, N.D., and takes out a trailer park.

AVweb responds...

Never underestimate the power of the North Dakota trailer park lobby!

--Mike Busch, Editor-in-Chief

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Carl B. Jordan

31 Jan 2000

CVR Tapes On NBC-TV

Responding to Capt. Paul McCarthy of ALPA [AVmail, 27 Jan 2000], I don't recall hearing any "screams" on the CVR tape segments that were broadcast by NBC. Yet, others keep harping about next-of-kin being "forced" to listen to the "dying screams" of their loved ones. First off, no such screams were broadcast. In fact, I've never heard or read that either of the pilots in the Cali crash reverted to screams. Second of all, those who don't want to hear CVR tapes can either not tune in, or else they can hit the mute button at the appropriate time. Nobody is being "forced" to listen. Therefore, the "insensitivity" argument just doesn't hold water.

Should the world be denied seeing and hearing Lee Harvey Oswald as Jack Ruby shot him? Can censorship of this dramatic footage be justified by saying that it's "cruel" or "insensitive" to force Oswald's next-of-kin listen to his moan, or see his pain-wracked face as he's shot?

Come on now!

On a great number of "cop" shows, or on "network specials," we hear telephone recordings of people who have called 911 during threatening situations. We hear pleas, screams and gunshots as some of these victims die. Are these disclosures also supposed to be censored because of a "sensitivity" issue? Hey, the real world is the real world - like it or not.

It's still implied by ALPA that NBC "broke a trust" when they broadcast portions of the CVR in the Cali crash. As published in AVmail, an ALPA spokesman has attempted to describe the composition of that "trust". I find nothing in the spokesman's description that ties NBC, or any other member of the media, to any trust - either tacit, or otherwise.

The ALPA spokesman also stated that I live in a league of my own. He would obviously be surprised to learn of the supporting comments that I've received after my letter appeared in AVmail. And, most of these comments have come from airline pilots, both active and retired. Among them is a former ALPA air safety representative, and even one who is currently serving as an ALPA elected MEC officer.

As a spokesperson for ALPA, it was proper for Captain McCarthy to outline ALPA's official position. However, it's absurd to think that such a spokesperson reflects the opinion of every airline pilot ALPA represents. No, I am NOT living in a league of my own. This is because ALPA remains a very democratic organization in which even minority opinion is given the light of day. Directing the argument against ME, rather than against the logic of my point-of-view, is not worthy of ALPA. I'm surprised to learn that an official ALPA spokesman has taken such a stance.

For the record, one of the favorable responses I received was from a former airline pilot and ALPA air safety representative, who currently has at least one family member flying as a second generation airline pilot. He's obviously not "insensitive" to the matter at hand. Also, I have a member of my family currently flying as a third generation airline pilot. Just as obviously, I am not insensitive to the "next-of-kin-in-the-cockpit" issue. Keeping that in mind, my opinion remains unchanged.

Carl B. Jordan -- ATP 1177041

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Jeff Hoser

31 Jan 2000

Low-Level Military Training Routes

Its too bad some of us don't realize these are a part of the price of freedom. These routes are a vital part of achieving and maintaining the combat proficiency required to survive in high-threat environments. Without these routes we can expect to lose aircraft and aircrew whenever the mission requires low levels.

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Chuck Forsberg

28 Jan 2000

Preflighting Gyros

This afternoon I spent an hour or so talking to my mechanics as they brought the shimmy damper on my Skylane's nosegear back to life. The topic got around to gyros and vacuum systems.

It seems the wet vacuum pump on Skylane N2469R is likely to go the better part of 10,000 hours before giving trouble. On the other hand, the dry vacuum pumps used on newer models seldom make it to 1,000 hours, and fail suddenly without warning.

The mechanics also mentioned that vacuum gyros usually give warnings they are in failing health.

I was trained as an engineer long before I was trained as a pilot.

The pilot's attitude is to be ready to deal with a gyro failure. The boffin in me reminds me of Dr. Jacoby's last flight.

I'm revising my startup sequence to: (1) watch gyros wake up, (2) check ammeter, and (3) check oil pressure.

It would help to know exactly what to look for. How about an article on recognizing gyro failures before they impact the safety of flight?

How about agitating for the abolition of dry vacuum pumps?

AVweb responds...

Excellent thoughts, Chuck.

You can get a pretty good indication of the health of your attitude gyro by watching it immediately after engine start. A good instrument should nutate (gyrate) significantly at startup, but the oscillations should dampen out fairly quickly as the gyro comes up to full speed. Failure to nutate at start up usually indicates that the instrument's gimbal bearings are shot, while a prolonged period of oscillation usually indications that the gyro is spinning up too slowly, either because of bad spindle bearings or inadequate airflow through the instrument.

It's more difficult to assess the health of a vacuum-driven heading indicator by watching it at startup. However, excessive precession during operation (and the need to reset the DG to the compass heading more often) is the primary warning sign for these instruments. A slaved heading indicator or HSI is even harder to "preflight" since the slaving does its best to cover up any gyro problems until they get very severe.

And it's harder still to detect impending problems with a turn-and-slip indicator or turn coordinator by watching the instrument. The best tip-off here is to listen to the sound of the electric gyro spinning down after shutdown at the end of a flight. A worn-out instrument will get noisier and spin down faster than a healthy one.

Your suggestion to watch the attitude indicator first after engine start, followed by the ammeter and only then the oil pressure gauges, is one with which I agree wholeheartedly. I would also suggest adding the vacuum gauge to the right-after-start checklist.

--Mike Busch, Editor-in-Chief

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Paul McCarthy

27 Jan 2000

CVR Tapes On NBC-TV

As an airline pilot, accident investigator, and safety official for the Air Line Pilots Association, I read with great interest Carl Jordan's commentary [AVmail, 24 Jan 2000] on the broadcast of the Cali accident CVR tape on "Dateline: NBC."

Mr. Jordan was correct in that NBC broke no law in using the CVR tape. Leaving aside the question of legal culpability, though, it was clear to me that Mr. Jordan's information about the pilots' issues that relate to the use of CVR tape is at least two decades out of date.

It is true that pilot concerns at first centered around fears that the tapes would be used by FAA or company officials for disciplinary actions. Quite frankly, at that time in American culture, the very idea that the screams of dying airline pilots might be broadcast by commercial radio or TV networks was simply out of the question, so it was not even raised as an issue then.

However, in the late 1970s and early 1980s, a number of CVR tapes found their way onto public airwaves. Airline pilots were so outraged at this grisly spectacle that they demanded -- and eventually got -- statutory limits placed on their use.

So when Mr. Jordan questions whether there was any "breech of trust" by the NBC broadcast, the answer is a resounding "yes." As soon as CVR tapes began to be exploited by broadcasters, pilots explicitly (and volubly) added this unwarranted invasion of privacy to their list of concerns. The ensuing moves to tighten NTSB regulations, and the subsequent statutory language that codified this into federal law, specifically increased the restrictions on the release of CVR tapes. In doing so, they enlarged the "trust" that pilots understood to be part of their quid pro quo acceptance of this otherwise invasive device.

Mr. Jordan correctly notes that the NTSB releases written transcripts of all relevant portions of an accident CVR tape. The Air Line Pilots Association strongly supports this practice; but Mr. Jordan then fails to move on to the next logical conclusion: If the written transcript provides sufficient information for the public to understand the evidence made available by this particular accident investigation tool -- and it certainly does -- then what value is added to the accident investigation process by allowing the entire human race to listen to the actual voices of doomed pilots?

The answer, of course, is that nothing is added, but much is lost in terms of human values. Perhaps Mr. Jordan would like to ask the widows and orphans of dead airline pilots the following question: How do you feel every time you hear broadcasts of your deceased husband or father as he screams out the agony of the last terrified moments of his life?

Some of Mr. Jordan's statements can charitably be attributed to not keeping up with the history of this issue. What I find particularly confounding, however, is that someone who holds an ATP rating -- which implies that he has flown as a commercial airline pilot -- would be so insensitive as to the privacy issues that are involved here.

In a quarter-century of commercial flying and doing ALPA safety work, I have yet to run into a working airline pilot who did not immediately raise his hackles and his blood pressure at the very thought of public access to CVR tapes. Mr. Jordan appears to be in a league of his own.

For the rest of us, the carefully crafted balance between the needs of accident investigation and privacy, as embodied in current federal law, are indeed a trust, one that we as pilots hold virtually sacred.

Capt. Paul McCarthy
Executive Air Safety Chairman
Air Line Pilots Association, International

AVweb responds...

Thanks for weighing in on this controversial issue, Paul.

--Mike Busch, Editor-in-Chief

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Gary E. Miller

27 Jan 2000

Deakin's CANPA Columns

The recent CANPA discussions have been particularly enlightening. The NTSB has just taken a position on this issue, in connection with new safety recommendations it issued as a result of the KAL crash on Guam. Please note NTSB safety recommendations A-00-13 to A-00-15. They clearly indicate which side of the CANPA fence they are on.

27 Jan 2000

The National Transportation Safety Board makes the following recommendations to the Federal Aviation Administration:

Require principal operations inspectors assigned to U.S. air carriers to ensure that air carrier pilots conduct a full briefing for the instrument approach (if available) intended to back up a visual approach conducted at night or when instrument meteorological conditions may be encountered. (A-00-7)

Consider designating Guam International Airport as a special airport requiring special pilot qualifications. (A-00-8)

Disseminate information to pilots, through the Aeronautical Information Manual, about the possibility of momentary erroneous indications on cockpit displays when the primary signal generator for a ground-based navigational transmitter (for example, a glideslope, VOR, or nondirectional beacon transmitter) is inoperative. Further, this information should reiterate to pilots that they should disregard any navigation indication, regardless of its apparent validity, if the particular transmitter was identified as unusable or inoperative. (A-00-9)

Conduct or sponsor research to determine the most effective use of the monitored approach method and the maximum degree to which it can be safely used and then require air carriers to modify their procedures accordingly. (A-00-10)

Issue guidance to air carriers to ensure that pilots periodically perform nonprecision approaches during line operations in daytime visual conditions in which such practice would not add a risk factor. (A-00-11)

Develop a mandatory briefing item for all air traffic controllers and air traffic control (ATC) managers, describing the circumstances surrounding the performance of the Combined Center/Radar Approach Control controller in this accident to reinforce the importance of following ATC procedures. (A-00-12)

Require that all air carrier airplanes that have been equipped with on-board navigational systems capable of providing vertical flightpath guidance make use of these systems for flying nonprecision approaches whenever terrain factors allow a constant angle of descent with a safe gradient. (A-00-13)

Require, within 10 years, that all nonprecision approaches approved for air carrier use incorporate a constant angle of descent with vertical guidance from on-board navigation systems. (A-00-14)

Include, in nonprecision approach procedures, tabular information that allows pilots to fly a constant angle of descent by cross-referencing the distance from the airport and the barometric altitude. (A-00-15)

Evaluate the benefits of depicting terrain and other obstacles along a specific approach path on the profile view of approach charts and require such depiction if the evaluation demonstrates the benefits. (A-00-16)

Provide user groups, along with Federal Aviation Administration Form 8260, draft plan and profile views of instrument procedures to assist the groups in effectively evaluating proposed new procedures. (A-00-17)

Consider the accident and incident history of foreign air carriers as a factor when evaluating the adequacy of a foreign civil aviation authority's oversight and whether a reassessment may be warranted. (A-00-18)

The complete recommendation letter is available at http://www.ntsb.gov/recs/letters/2000/A00_7_18.pdf.

AVweb responds...

Interesting stuff, Gary. Guess the safety board didn't consult Deakin.

--Mike Busch, Editor-in-Chief

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Jon W. Blake

27 Jan 2000

Carbon Monoxide Detectors

I read Mike Busch's CO article with great interest. Let me relate a personal experience...

After flying with a friend for an hour in my newly-purchased 1958 Cessna 172, he complained of a dull headache. A couple of weeks later, on our way to Lakeland, Fla., for the annual airshow, we landed after three flight hours to refuel. We both had headaches. This was my first suspicion of CO in the cockpit.

I bought a new "spot" CO detector and installed it on the panel as instructed. We continued on towards Lakeland and after about an hour our headaches returned. (And yes, I am aware of the cumulative effect of CO poisoning.) The spot never changed color even when placed next to the heater exit vent. I decided to keep to low altitudes and not use the heater.

After returning to home base in Alabama, I went to Lowes and bought a $45 electronic CO detector. I installed the battery and laid it on the right seat, pulled the heater knob to full on, and took off. After only about 15 minutes, the detector started shrieking its alert. I opened the windows, closed the heater knob, and returned to base for landing. I removed the cowl and heater shroud and found the telltale signs of exhaust blow-by. As an A & P mechanic, I repaired the problem and went flying with my new cockpit friend again. This time, the electronic CO detector did not screech once, even after almost fours on a cross-country.

Moral of this story: The spot detectors are worthless, and a simple although non-FAA approved $45 device most likely saved my life. Funny thing is, I bought this airplane from a guy who lives up north and surely flew with the heater full open and it had gone through (at least) the last annual without the problem being discovered.

AVweb responds...

Jon, thanks for sharing your experience. One comment: You should not wait for the electronic CO detector to sound its audible alarm before taking action. By the time the horn sounds, you've had enough CO exposure that your performance as a pilot has been seriously degraded. Always keep the detector where you can see its digital readout, and make sure to glance at it at least several times an hour. An indication as low as 30 to 50 parts per million of CO should be grounds for getting on the ground quickly, even though the horn will not sound until the CO concentration is significantly higher.

--Mike Busch, Editor-in-Chief

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Andy Elliott

27 Jan 2000

Airborne Lasers

Reference your story on the Air Force's ABL project:

WORK BEGINS ON AIRBORNE LASER -- OR IS THAT A RAY-GUN? A brand-new Boeing 747-400 freighter arrived Saturday in Wichita, Kan., to begin its transformation into the first Airborne Laser (ABL) platform. This is the real thing, sci-fi fans -- a multi-megawatt chemical laser will be installed in the jumbo for use as an anti- missile weapon. The oxygen-iodine laser beam will be shot from a turret on the plane's nose, and it is designed to knock down Scud-type missiles launched hundreds of miles away. The U.S. Air Force plans to acquire a fleet of seven ABLs that will be available for deployment to world hot spots in a matter of hours.

The 747-hosted ABL is not the Air Force's first airborne laser platform. In the early 1980's, the Air Force built and successfully tested a sub-megawatt device installed on a highly modified 707 (NKC-135A) known as the Airborne Laser Laboratory (ALL). During testing, the ALL shot down cruise missiles, air-to-air missiles and ICBM-like surface-to-surface missiles.

The ALL program, led by Col. John Otten, was critical in developing and proving out much of the technology now in the ABL, although a different type of laser is being used there. In fact much of the old ALL crew, both military and contractor, is now involved in the ABL.

The ALL aircraft is on display at the Air Force Museum at Wright- Patterson AFB, Dayton OH. A book about the program, "Airborne Laser: Bullets of Light" by Robert Duffner and Hans Mark, is also available.

AVweb responds...

Andy, thanks for the great background. I was only vaguely familiar with the technology demonstrations before the ABL program was developed as a deployable weapon system.

--D. K. (Kim) Broadwell, Newswriter

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Luther Rhett Walley, M.D.

27 Jan 2000

Kudos To AVweb

A short note to thank AVweb for its invaluable contribution to me and to general aviation. I have purchased two GPS and headsets, obtained valuable weather links, learned many lessons from the articles and Brainteasers, been alerted to the Continental crankshaft AD and now the Precise Flight standby vacuum AD and the alternate methods of compliance. Thanks again for the help.

AVweb responds...

Pleased to be of assistance, Luther.

--Mike Busch, Editor-in-Chief

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Vasa Babic

27 Jan 2000

Kudos To AVweb

I've just signed up for AVweb, and wanted to to say that the content on your site is superb. I'm a U.K. 400-hour private pilot and Seneca owner. AVweb has a mass of valuable knowledge on ownership, maintenance, operation, twin and IFR training and safety that I've never picked up despite an entire adult lifetime of reading aviation books and magazines, learning from CFIs, and talking to fellow pilots.

Mike Busch's articles on twins are tremendously useful, as is the depth and detail of many of the other articles and columns. For example, NO SOURCE I'VE EVER FOUND explains Manifold Pressure, Prop and Mixture control as well as John Deakin's Pelican's Perch columns. Even in the best print publications, space is too limited to treat such subjects in the required depth. Yet, the level of detail AVweb's coverage goes to is exactly what owner/operators are interested in. Similarly, Mike Busch's review of the Sandel EHSI is exactly what a potential buyer wants to read, to answer all the questions a typical product review would leave out.

I hope this content gets the recognition it deserves from your advertisers; of all the leisure categories competing for ads on the internet, aircraft owners must figure pretty highly on dollar spend in their chosen hobby!

AVweb responds...

Thanks for the very kind words, Vasa. (The check is in the mail.)

--Mike Busch, Editor-in-Chief

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Joe Della Barba

27 Jan 2000

QOTW -- Pressured To fly

Your summary of the QOTW in NewsWire is badly in error. You say:

The 32% of commercial flyers who said that they have been pressured to fly cited charter, ag, and offshore copter ops as the worst for pressure.

However, your stats for commercial ops are as follows:

  • Pressure: 32%
  • No Pressure: 16%
  • Does Not Apply: 51%

This means 66% of commercial pilots were pressured to fly, NOT 32%.

AVweb responds...

Right you are, Joe! Our statistician has been stripped bare, tied to a tree, and flogged mercilessly with a tiedown chain for that gaffe until he promised not to be snookered by that old "does not apply" trap again.

--Mike Busch, Editor-in-Chief

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Charles Pratten

27 Jan 2000

Contaminated Avgas Downunder

I have a been a member of AVweb for well over 18 months now and I really appreciate the news. I am also the Managing Director of Avsure, the second largest aviation insurer in Australia. We insure about 3,000 small piston aircraft, and have felt the pinch mainly due to customers not requiring insurance while their aircraft cannot fly. Some of our small operators have shut their doors permanently. From the insurer's aspect, everything is a bit fuzzy at the moment.

CASA is trying their level best to pitch the blame and responsibility onto others. For example, last week they were demanding that engine manufacturers give the all-clear. Now they are demanding that insurers give the all clear. CASA is simply palming everyone off while not fully comprehending the situation and how to go about rectifying it. The professor given the task to analyze the contamination has only referred to descriptions of the contaminant as being "white goo" and "black gunk." (I love that technical talk.)

From our point of view, we will cover the aircraft when they are legal to fly -- but while CASA tries to get someone else to give the go-ahead, the whole process is stalled. We are fielding many calls from engineers (mechanics) requesting indemnity for any damage that may occur in flushing the fuel systems with water -- NO WAY!

Mobil is going to have to fix this whole thing at their expense and risk. As an owner/pilot myself, I urge USA pilots to boycott Mobil fuel to help us out here because, let's face it, we are a very small group in comparison to the USA flying fraternity and we could do with all the might and pressure you can help us put on them.

Meanwhile, insurers in this country are going to have to be very careful about what is legal and what is not -- big problems ahead, you can be assured.

AVweb responds...

Thanks for your interesting perspective on the situation, Charles.

--Mike Busch, Editor-in-Chief

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Rob Padjen

26 Jan 2000

CVR Tapes On NBC-TV

I couldn't disagree more with the story on CVR tapes and their disclosure by Dateline NBC. I have always objected to the controls placed on this data by the NTSB, and as a pilot I find their contents very helpful. The reality is that even lay people have the ability to cause change, and these changes can be beneficial to the aviation community. For example, years have past with major problems in radio communication -- both the technology and the languages used. This is best exemplified with CVR and radio recordings -- one to show what was being communicated and one to show what was heard. Accident prevention also benefits from CVR and FDR output -- I have learned a great deal from hearing the tapes and reading the NTSB reports in concert. The sad reality is that the withholding of this information, especially after a crash or incident, is akin to encouraging the same errors.

I for one plan to key open the mic when and if I ever have an accident so that the FAA recorders can capture this information. If something is happening in the cockpit that we don't want, can't we change it without turning into the Gestapo?

AVweb responds...

I don't know what you do for a living, Rob, but it's conceivable that you might feel differently if your office was "bugged" and the tapes could be made public at any time without your permission. Without taking sides one way or the other, let me just say that this is a much more complicated issue that you seem to believe. There are never easy answers when "the individual's right to privacy" conflicts with "the public's right to know." Trust me on this.

--Mike Busch, Editor-in-Chief

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Matthew Shaffer

25 Jan 2000

Kudos To AVweb

I've been an avid reader of AVweb and AVflash now for several years. Today, after an almost two-month hiatus, I read the latest issue. I want to compliment you on your magazine and news service, which (in my humble opinion) has fully matured. The writing is excellent and balanced. The presentation on the Web site with the pictures and images is polished. Most of all, it's easy to look at and to read. I really enjoy it and I especially appreciate the approachability of the publication to the general community.

As armchair pilots go, I like to think of myself as proficient. As an AVflash reader (and AVweb crawler), I consider myself particularly well informed.

Thanks.

AVweb responds...

Thanks so much for your kind words, Matt. (The check is in the mail.)

--Mike Busch, Editor-in-Chief

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Gregory A. Russell

25 Jan 2000

USA Today On Airport Firefighting

"Monkeys and you..."

Yes friends you read it right! What do monkeys have to do with you? Well, in an article published in the Jan 24, 2000 edition of USA Today on page 8a (and on the internet at http://www.USAToday.com), Mr. Ron Mercer, Director of Helena Regional Airport (Montana), stated that "Hell, I can train a monkey to go out there and fight fire."

The article, "NTSB Again Eyes Airport Rescue Capabilities," was dealing Crash Fire Rescue services provided at airports. Mr. Mercer stated that he uses his "groundskeepers, mechanics and custodians" to provide these essential emergency services to the aviation community. According to the article, the Helena Regional Airport handles three daily arrivals and departures of Boeing 737 aircraft. And I am sure many more "commuter" class aircraft. The people from HLN are trained by Mr. Jay Golladay at the Rocky Mountain Emergency Services Training Center. He states that the thought of a janitor fighting a fire aboard a 737 is "very scary."

My question to you: Do you want a "monkey" to come your rescue in times of need? As a 12-year career firefighter and one with over seven years experience as an Aviation Rescue Firefighter, I know the dangers experienced by the aircraft passengers and rescuers. Not only must the fire and rescue services arrive very quickly at airplane crashes, but they must also be well-trained. As a pilot, I am appalled that this person represents anyone within the aviation community. He has done a disservice to all pilots and aircraft owners with this statement!

Just to enlighten some of you that may have questions about "Aviation Firefighter" certification: In order to become Nationally Certified as an "Aviation Rescue Firefighter" one must first attend and pass approximately 250 hours of basic Fire and Emergency Medical training and then complete an additional 40 hours of "Basic" aviation fire training. And that is just "BASIC" ... I am sure you are like me and want someone with advanced training to come to your rescue!

I would urge each of you to take your aviation business away from The Helena Regional Airport. Further, please voice your displeasure with Mr. Mercer's statements by sending email to him at rmercer@icitco.net or call is office at 406-442-2821. For those that would like to send a fax, the number is 406-449-2340

I have never met a firefighter that would not help a person in need. Further, Aviation Firefighters are prepared to give up their life so that one of us in our time of need can survive. We should certainly show them considerably more respect than what Mr. Mercer thinks.

Again, please voice your displeasure with him and let your local fire service know about this article so that they to address this erroneous statement!

Greg Russell
Aviator Saver

AVweb responds...

Thanks for your note, Greg. I read the USA Today piece the day it came out, and had a similar reaction. I certainly hope Mr. Mercer's emailbox is a big one!

--Mike Busch, Editor-in-Chief

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James Keirnan

25 Jan 2000

Royal Australian Air Force

As a one-time serving officer of the Royal Australian Air Force (RAAF), based at Edinburgh AFB (home of the P3Cs), I thought I'd point out that our Service is known as the "RAAF", not "AIF". However, you may be interested to know that the Australian Forces serving in WWI were referred to as the AIF (or Australian Imperial Forces). However, I don't think we need to resurrect that title! Congrats. anyway on a generally very well researched and humorous bulletin! I'm sure you'll get many annoyed pedants informing you of the correct acronym, so I'll leave my message at that. Thanks again and keep it up.

AVweb responds...

Ah, so THAT'S where we got it!

--Mike Busch, Editor-in-Chief

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Aaron Marshall

24 Jan 2000

Contaminated Avgas Downunder

I thought that you might like to hear a different perspective on this issue ... from New Zealand.

As you probably know, some of the contaminated fuel was shipped here to New Zealand, so theoretically, we should have exactly the same situation here as in Australia, grounded aircraft, etc. But it seems that the New Zealand Civil Aviation Authority hasn't taken such a drastic view of the situation. The AD in N.Z. calls for the following if there are black deposits found:

(A) Drain suspect fuel from the aircraft fuel system (tanks, lines etc.) and replenish fuel tanks with non-suspect fuel, and

(B) for carburetor-equipped engines, remove, inspect and clean the needle and seat assembly, and inspect and clean brass floats, and

(C) ensure all electric boost/emergency pumps operate normally, and

(D) carry out an engine ground run to ensure the engine meets all aircraft flight manual performance requirements.

(E) The aircraft may be returned to normal service if the engine run is satisfactory.

(F) If the engine run is not satisfactory and engine operation cannot be corrected by normal troubleshooting procedures, dismantle the aircraft and engine fuel systems to a sufficient extent to enable the system components to be inspected, cleaned and repaired as necessary to ensure all deposits have been purged from the aircraft.

It would seem that there is quite a difference between the two authorities as to what to do about this problem.

Incidentally, we do not know of any of aircraft that were fuelled up with the contaminated fuel here that have had any contamination found in the fuel systems. It may be that the extra filtering and screening that the fuel got between Australia and New Zealand was enough to remove the deposits.

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Allen D. Gault

24 Jan 2000

FAA Aging GA Aircraft Summit

The subject of aircraft older than 50 years is dear to my heart because I am the owner of a 1948 A-35 Bonanza. I have owned the aircraft since 1986.

With an older aircraft the owner must play an active part in the maintenance going far beyond simply finding a competent mechanic. I have "fixed" problems introduced over the years which includes stall warnings, prop governor conversions, magnetos, control rigging, connecting rods, hydraulic lifters... to name a few. Fortunately I have the manuals which cover the airframe and engine and prints for the STCs.

What I do is familiarize myself with the task so that a dialogue will occur with the provider or do it myself and have it signed off. You cannot take the aircraft to someone and say "fix it."

So the effort "legalizes" what has already been occurring.

AVweb responds...

As an active wrench swinger myself, I am a very strong believer in maintenance-involved ownership, and would strongly support any change to the FARs that would expand the scope of the maintenance that an appropriately-trained owner/pilot can do on his or her own aircraft used in non-commercial operations. I realize, of course, that this is a very controversial issue, and have debated at length with many A&Ps who firmly believe that "the most dangerous thing in aviation is a pilot with a toolbox."

--Mike Busch, Editor-in-Chief

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Wendell Bailey

24 Jan 2000

CVR Tapes On NBC-TV

I am confused by the statement in this story that the law does not apply to NBC because the accident took place outside of the U.S. Earlier in this same story it clearly says that the law forbids the NTSB from releasing the CVR tapes. my question is this: Does the law also make it illegal for a third party to make use of the CVR tapes?

In other words, was it correct to say that NBC is off the legal hook only because of the location of the incident?

While I take no position as to whether or not the news people used good judgment (theirs is a much harder job than mine) I do hate to see it implied that they escaped a legal problem on a technicality when it might be possible that the law was not written with the entire set of possible scenarios contemplated.

This would seem to be a problem with the law, not with NBC.

Wendell Bailey
NBC
Chief Technologist
Advanced Broadband Technology

AVweb responds...

Wendell, we agree completely. Whoever made the CVR tape available to NBC may well have broken the law (although it's hard to say, unless and until it is known exactly how NBC came by the tape). Neither NTSB Chairman Jim Hall nor AVweb contends that NBC broke the law by broadcasting it.

Say, while I have you, Wendell ... I wonder if you can help me get an Internet connection faster than 28.8 Kbps?

--Mike Busch, Editor-in-Chief

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Carl B. Jordan

24 Jan 2000

CVR Tapes On NBC-TV

You guys are barking up the wrong tree when you chastise "Dateline NBC" for broadcasting portions of the CVR tape of American Flight 965 at Cali.

You state that there is a federal law that prohibits the NTSB from releasing CVR tapes. Tell me, how can NBC be guilty of infraction of a law that applies to the NTSB? If the NTSB released the tapes, then you would have a gripe against the NTSB. However, you don't have a gripe against NBC because they aren't obligated to follow laws that apply to the NTSB, anymore than you or I would be required to follow such laws.

You imply that NBC was somehow guilty of an infraction of the law. Sorry, guys, but you're way off base this time. NBC is under no such constraints.

The "breech of trust" that Captain Duane Woerth has lamented is nonexistent. Those of us who were flying the line back when CVRs were first installed in cockpits were afraid they would be used as eavesdropping enforcement tools. We could foresee company snoops and FAA personnel reviewing selected CVR tapes, just looking for infractions that could be used against pilots. Certain pilots could be selected for "special monitoring" in hopes of finding some infraction for which the pilot might be fined or terminated. Likely targets, of course, would be representatives of the pilot's union, or anyone else that they powers-that-be felt like putting under the microscope.

The same fears existed with the introduction of the FDR, by the way.

To alleviate suspicions and pilot reluctance, the FAA and the airlines agreed that these devices would be used ONLY for investigative purposed after a crash or serious incident. The "trust" that exists, then, is that these devices will NOT be used as monitoring tools to "trap" pilots. They will be used, instead, as investigative tools for the advancement of safety.

In the case at hand, there was no "breech of trust" as claimed by Captain Woerth. The tapes were not used to intimidate, fine or fire any pilot. The tapes, in fact, have been transcribed, in full, in the official NTSB transcript and accident report regarding this crash. Nothing that was aired by NBC was different than that which was written in the official accident report - available to anyone who wants to peruse it, by the way.

The contention that the "lay people" should be shielded from exposure to such information, and that it should be available only to "savvy professionals" is absurd!

It doesn't take a rocket scientist to be able to interpret what is happening in the cockpit when the flight crew says, "Where are we? What's going on here? Hey, we're all f----d up!" Or to interpret the reply, "How did we manage to get so f----d up?"

At that point, it would seem quite apparent to laymen and savvy professionals alike that both of the pilots realized that they had "f----d up!" And, it doesn't matter if these statements are read, or are heard. The inference remains the same, in either case.

Why they kept diving out of the sky after realizing that they were "f----d up" is what causes laymen and savvy professionals, alike, to shake their heads.

And, true to form, the infamous "Oh s--t!" appears on the CVR just after they get the terrain warning, and realize that they're about to crunch into the mountains. It's amazing how often this final exclamation appears on CVR tapes retracted from airline wreckage.

What Captain Woerth should be upset about is the absurd contention that it was a "language difficulty" that contributed to the errors made in that cockpit that night. This was the whole thrust of the Dateline program. In the case of the American 965 crash, there was NOTHING in the way of "language problems" that caused the flight crew to get "f----d up." They were speaking perfect English to each other in that cockpit. And, the error that killed everybody was made solely in the cockpit of that airplane - nowhere else!

To put an actual voice to the words that appear in an official public document (the NTSB Accident Report) hardly seems to be a "breech of trust" as expressed by Captain Woerth. Somebody's got their head screwed on backwards, and it's not NBC.

Carl B. Jordan
ATP 1177041

AVweb responds...

Carl, it is not AVweb's contention that NBC violated any law by broadcasting the Cali CVR tape, nor do I believe that there is any such statement or implication in our news stories concerning the incident. If a violation of law did occur, it was almost certainly on the part of whomever provided the tape to NBC.

--Mike Busch, Editor-in-Chief

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John Brown

24 Jan 2000

Royal Australian Air Force

I have been an avid reader and subscriber to AVweb for nearly 2 years now. I have read (and been stupid enough to believe) your rantings every week. However you showed your true colours this week (Jan 24, 2000) when you displayed total ignorance in calling the Australian Air Force, both the AIF and the AAIF.

What the hell does the "I" satand for??? The Service you were referring to in your article is the Royal Australian Air Force (abbreviated to "RAAF").

If you are going to claim to be an international, creditable, aviation news service, please DO SOME RESEARCH & GET IT RIGHT!!!!!

AVweb responds...

John, I believe the "I" stands for "ignorance" (by AVweb's northern-hemispherocentric staff). Sorry about that.

Now I have a question for you: Was the word "satand" in your email a Satanic slip?

--Mike Busch, Editor-in-Chief

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George Sears

24 Jan 2000

Twin Cessna Exhaust AD

My reaction to the Cessna Exhaust AD is similar to my reaction to most ADs: bewilderment. The process always seems choreographed. First, the FAA comes out with some blanket proposal, which will almost certainly be unreasonable on its face. If there is a bad part (e.g., the Cessna fuel strainer AD), it is often easy to determine that no mods have been made to that part, etc. How that determination is made tends to be a focus. If a mod applies to Cessnas, it is relatively pointless to have owners exhaustively determine their airplane is a Maule.

Since most of the FAA proposals begin in a place that shares no border with common sense, it must be expensive to hire and maintain the bureaucrats who generate these ideas. Perhaps they are specially bred, matching people with minimal common sense until the trait disappears entirely. Or maybe the proposals are computer generated.

Next, user organizations such as AOPA or CPA or whoever get involved. They say the original proposal is too broad. And, yawn, ultimately some compromise is reached. If this is the way the process works, fine. It keeps the FAA guys in their job. It makes some people pay their dues to the user organizations. Whatever is left on the table, the aircraft manufacturer can simply issue as a Service Bulletin. Their lawyers have to eat.

Most of the time when I read AVweb's accounts of this process, I wish I had one of those ReliefBand bracelets that prevent nausea. Let's see: I pay taxes to keep the FAA going. I belong to EAA and AOPA, and used to belong to CPA. So it's like being suspended over a pit and dropping dollars down to see people do their routine. It's a lot like pro wrestling. Taken in this light, I guess it really is just entertainment, or "regulo-tainment." Alas, it's not nearly as well choreographed as the WWF. With a little attention to detail, maybe you guys could get a bitchin' cable/satellite pay-per-view package.

I used to look forward to getting AVweb. Like so many things on the 'Net, the promise for change was quickly usurped by the revenue needs. Or just pure greed. Or maybe the premise that the 'Net would be different was always hype, anyway. The pages load more quickly in a flying magazine. The pictures are prettier. Do I really need to hear about the latest AD proposal in minutes, come to think of it?

I suppose you will have an IPO, cash out. Hope you get a good pop.

AVweb responds...

George, is there anyone in aviation that hasn't offended you?

As a very active participant in the three-year struggle that culminated in AD 2000-01-16 concerning twin Cessna exhaust systems, I share much of your bewilderment about the process involved. On one hand, "the system worked" because the final outcome was a reasonable one that addressed the FAA's safety concerns while at the same time being a solution that the aircraft owners and operators could live with. On the other hand, "the system didn't work" because what should have taken six months wound up taking three years, with a lot of unnecessary bureaucracy, brinkmanship and acrimony along the way, all the time terrifying twin Cessna owners that their airplanes might wind up grounded or unsaleable.

It is my sincere hope that before the twin Cessna exhaust AD saga evaporates from memory, we'll be able to sit down with the powers-that-be in the FAA -- specifically Administrator Jane Garvey and Associate Administrator Tom McSweeny -- and analyze why what should have been quick and easy wound up being so slow and hard.

And to answer your last question: If AVweb, CPA and AOPA hadn't gone to extraordinary efforts to get the word out on the twin Cessna NPRM last June at the speed of electrons, the 30-day public comment period would have expired with only a handful of comments and the outcome might have been disastrous for owners of the affected airplanes. So yes, you really DO need to hear about the latest AD proposal in minutes rather than weeks (at least if you're affected by it).

--Mike Busch, Editor-in-Chief

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Name Withheld

24 Jan 2000

Boeing 737 Accidents

One B-737 accident that I never see mentioned when the mysterious circumstances are discussed, is that of the United 737 that crashed on final approach at Midway Airport in Chicago, way back sometime shortly after the airplane was put into service.

Somehow, in their infinite wisdom, the "experts" wrote that one off as another example of "pilot error." I was a Boeing 727 captain at the time, and knew the captain of the 737 flight, Wendell Whitehouse, very well. "Whitey," as he was known to his many friends and cohorts, had served many times previously as my copilot. Based on his performance on those many flights with me, I would "bet the farm" that pilot error was not involved. Whitey Whitehouse was far too good a pilot for that.

I would think the least the "experts" could do now, in an effort to find the real truth about these mysteries, would be to take another serious look at the record and the evidence from Whitey's crash at Midway. Maybe it wasn't "pilot error" after all!

I have no objection to being publicly identified as a retired airline pilot who knew Whitey personally, but would appreciate my name being withheld.

Name Withheld
Captain, United Airlines (Retired)

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Greg Flude

24 Jan 2000

Blue Ice

It is not necessary to go to Spain for the joys of falling ice.

While I was General Counsel to a Canadian charter airline in the 1980's, I received a communication from the FAA asking me to identify the captain of one of our DC-8-63 aircraft. The aircraft had flown over an area of West Virginia at approximately 8:30 a.m. one bright and sunny morning. It appears that while a couple had been eating breakfast a large piece of the frozen blue stuff had crashed through their ceiling onto their bed. Our aircraft had been identified on radar as the only aircraft over the area for the last 20 minutes.

The cause of the problem was a malfunctioning heater on the outlet pipe. Usually excess liquid is vented into the stratosphere to fall as rain when the weather demands it. With a malfunctioning heater a large block of blue ice accumulates and falls as the largest hail ever recorded.

As I said, the couple were having breakfast. One half an hour sooner and they really would have been in it. Total damages were about $1,500 to fix the roof.

AVweb responds...

Plus, I imagine, $25 or so for new underwear.

--Mike Busch, Editor-in-Chief

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Michael Falabella

24 Jan 2000

CVR Tapes On NBC-TV

The lead story in this weeks AVweb NewsWire has some inconsistencies that are very glaring. The last sentence: "In this instance, U.S. law does not apply since the accident occurred outside the country." WRONG!

I heard that tape on the NBC News and I was shocked. I am also sure I never heard a disclaimer or anything said about how they came to get that tape. That aircraft was being flown in accordance with all of the Federal Aviation Regulations that were in force for its operation. To add to this, the airline and crew were obligated to operate in accordance with Colombian law also -- AND because both countries are signatories of the ICAO, that legal document also comes into play.

In light of the above, all of the legal requirements were in place at the time of that accident. There are no ifs, ands or buts about it. Whoever authorized the use of that tape -- and who ever "sold" that tape -- breached Federal and ICAO legal codes. This was no different than the persons who took seat material from the TWA800 accident site and had it analyzed to support their theories.

I have a habit of interjecting my experiences into these problems. I am still a firm believer in "history," and what is experience? In the spring of 1984, I was the Director of Quality Assurance for a large corporation, that operated FAA repair stations in many parts of the world.

Just at quitting time one day a messenger arrived at the plant with a CVR. It was from a new start-up airline out of Newark, N.J., and it was off a B727. My secretary and I stayed and listened to the CVR. She took it all down in shorthand then typed it up. The customer had wanted that information, as it was critical to them.

The tape had three voices on it. Two were in the cockpit when the third arrived. The conversation went something like this: "Did you do a walk-around?" "Yes, about 18 feet of trailing-edge flap is missing on the left wing." "Shit, that's why the fuzz is involved and why the airport police stopped us from taxing out." "I spoke to Newark, they do not want us speaking to anyone." We sent the CVR and transcript back to the company.

In the late summer, of that same year, the FAA offered me a job at the Teterboro office. I took it for the pension and the ability to add my military time to it. Six months went by, and a Congressional inquiry was dropped in my lap (on my desk). I had forgotten about that CVR transcript. I was involved with that airline now from a legal point of view.

I read through this stack of paperwork, and was I shocked. This flap problem involved the same airline. The aircraft had picked up passengers in Baltimore and continued to Newark. A young mother and baby going to Syracuse, N.Y., had complained to her Congressman. "On takeoff, the aircraft vibrated and the overhead bins opened. After a while, it settled down and there was no more vibration. I told the Flight Attendant and was told it was normal. When we were arriving at Newark, the shaking started again. Again, I complained and was told the same thing."

Each time the aircraft took off or started its landing approach, it vibrated. To compound the problem, it was getting progressively worse, as indicated by the other passenger letters to various Congressmen and Senators. I had to go to my supervisor and remove myself from this investigation. By the time I read all of the letters; I had connected the CVR tape that spring, the crew and the airline, to the investigation.

Not only did I know the airline and crew, I knew the aircraft number, flight number, times, dates, and I had pictures from the airport police in Syracuse, etc. I had the whole schmear. AND I was also a witness to the tape transcription. As the aircraft departed Baltimore the trailing-edge flap started to disintegrate. Every passenger complaint went to the cockpit and the passengers were told, "that is normal."

When the aircraft was started in Syracuse and backed out; the airport police had already been notified. A piece of airplane had been found on someone's roof. The owner had heard a bang and the house shook. The airplane part found on the roof was very long and narrow. The tower called all aircraft, no one knew anything. Yet someone had 18 feet of flap missing by this time. It was the airport police that found the flap segment missing on that aircraft.

This article brings out several problems, such as language. Try flying over or operate out of France (or Eastern Canada for that matter), and you would think French was the language of the world. I think Capt. Woerth and Jim Hall have a legitimate complaint. Actions such as this undermine the whole investigative process. We only have a safe system mainly in part because of those investigations, AND the NEWS MEDIA had better start understanding that. I think the word is RESPONSIBILITY.

AVweb responds...

Michael, the various laws you cite forbid those in the aviation industry from disclosing CVR tapes. They do NOT forbid the media from disseminating CVR tapes should such tapes come into their possession. A law that throttled the media would constitute "prior restraint" and would almost certainly be unconstitutional. It is very possible that whoever was responsible for putting the Cali CVR tape in the hands of NBC TV committed an illegal act, but it's almost certain that NBC TV violated no laws by broadcasting the tape. Whether doing so was journalistically responsible is a debatable point, but if a crime was committed, NBC was almost certainly not the perpetrator.

--Mike Busch, Editor-in-Chief

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Fred Weaver

23 Jan 2000

Laird Doctor v. Howard Pardue

Just a note on the ridiculous lawsuit filed by "Doc" Laird. My plane was parked in the experimental area directly across from the impact point. Mr. Pardue was doing nothing wrong and was actually well over on the left-hand side of the runway when "Doc" smashed into him. We watched the entire episode unfold and there is absolutely no reason for a "negligence" lawsuit to be filed. If anything, Pardue should be suing "Doc" for the entire incident.

My final comment is simple: Doc is lucky to be alive and the lawsuit is without merit.

I also have photos of the seconds just after impact and I expect to provide them if this really goes to trial. This is a pathetic result to an incompetent pilot smashing into another simply parked where he was supposed to be. I guess we have degenerated into a litigious society just trying to point fingers even when we are at fault. Totally pathetic.

Fred Weaver
San Jose, CA
Wittman Tailwind W10
Reserve Grand Champion 1982

AVweb responds...

Fred, the accident was a near tragedy, yes, but I fail to see how a lawsuit will make it all "better." Allow me to stand on a soapbox and talk about the fact that nowadays, no one really needs a reason for a lawsuit ... simply a lawyer willing to file it. I think those suits are encouraged by a legal system that is structured so that companies and individuals can pay a little by settling quickly, or pay a lot on a protracted defense. Total insanity.

I fear that this lawsuit in particular will cast a pall over warbird activities; that it will let the genie fly from the bottle. The whole sad upshot could be that insurance rates would rise to the point that the museums and groups that own the warbirds could not afford to fly them. To relegate these pieces of our history to nothing more than static displays would be the real tragedy.

--Liz Swaine, Newswriter

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Niel Solomon

22 Jan 2000

Laird Doctor v. Howard Pardue

The below quote was part of your Warbird Crash story in AVweb NewsWire.

A pilot asked: "Why has our society become one of not shouldering personal responsibility, and instead, has evolved into one seeking blame?" That is likely a question quite a few are pondering today, and with this lawsuit, will have to worry about even more...

My response is that it is a fact of life. Human consciousness/awareness seems to flow over time as waves on the ocean. The nature of this wave is failing to understand that we are responsible for our own experiences. It looks like a huge wave to me, and I see it lasting for generations to come. Somehow, consciousness has become corrupted and the victim intellect is prevailing. It is a powerless way to go through life and tragic in its all pervasiveness. Those of us who are not part of the wave have a huge responsibility to all the rest to keep this world aligned as best possible until the wave dissipates.

"True power is the willingness to take responsibility for whatever comes along. Being victim is only a state of mind and leaves us powerless by our own choosing."

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Richard Kurkowski

21 Jan 2000

Project ASAP

In AVflash 6.03b, you wrote:

CLINTON CALLS FOR INCREASED AIRLINE SAFETY ASAP...
In what could be a first, a new Clinton administration initiative is being roundly praised by everyone from pilots to airlines to union reps. The Aviation Safety Action Program, known by the catchy acronym "ASAP" for short, was unveiled by Mr. Clinton last week. He touts ASAP as a way to "fix problems, not blame" when it comes to commercial airline safety. The program is very different from most FAA programs in that it doesn't kill the messenger, neither does it mete harsh discipline to mechanics or pilots who, good heavens, admit when they do something wrong. ASAP's plan is to use the information gathered to lower commercial aviation accidents by 80 percent by 2007. That may sound like a lofty goal, since commercial air travel is already a pretty safe business.

I would like to know why the White House does not acknowledge and build on the 25-year-old program called The Aviation Safety Reporting System (ASRS). It's already in place and working and has been supported by many Administrations. Why do we need ASAP when we have ASRS?

Richard Kurkowski
NASA Aerospace Research Engineer, Retired

AVweb responds...

Dick, we received many similar questions from other AVweb readers.

The NASA ASRS program is designed to solicit information from individual pilots and controllers (primarily) and to provide them with protection from being prosecuted based on that voluntarily-submitted information. The ASRS program does NOT protect airline pilots against information voluntarily submitted to the FAA by their employer airlines. Airlines are under increasing pressure from the FAA to submit such information as part of various programs such as FOQA, and pilots (and their unions) were understandably concerned about how such information might be used in FAA enforcement actions. That, as we understand it, is the reason for the ASAP program.

--Mike Busch, Editor-in-Chief

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Fred Clegg

21 Jan 2000

Carbon Monoxide Detectors

Last week, I ordered and received an AIM SAS-696D electronic CO detector from Aeromedix.com -- mainly based on the information in Mike Busch's article on such detectors on AVweb.

Shortly after receiving the unit, I felt compelled to test it. Holding it in the general vicinity of the combustion products of an ordinary candle or the gas range in my kitchen produced no noticeable indication. Next I tried exposing it intermittently to the exhaust gas from the tailpipe of one of my cars. That produced results pretty quickly. Within two minutes or so, the LCD readout was showing a CO concentration of 999 PPM. To my surprise, however, it was another 5 - 6 minutes before the horn on the unit sounded. Once the horn sounded, my repeated attempts to silence it by pressing the button on the unit were unsuccessful. Ten minutes or so after being moved back to fresh air, and after the LCD readout had dropped to something less than 100 PPM, the horn stopped on its own.

This behavior is somewhat different from what I expected, having read Mike Busch's article. Therefore I pose you the question: is my AIM SAS-696D possible defective?

AVweb responds...

Fred, sounds to me as if your SAS-696D is working properly.

A gas range will normally not produce any measurable CO since combustion is nearly 100% complete (and CO is a byproduct of incomplete combustion of fossil fuels). A candle may or may not produce measurable CO. I found that a good way of testing CO detectors was to put an ordinary paper towel in the kitchen sink and light it. The burning paper produces a somewhat sooty flame (due to incomplete combustion) and soon generates 50 to 100 PPM of CO in the sink ... plus there's a readily-available source of water to extinguish the flame if necessary.

The CO concentration of automobile exhaust varies from extremely high when the engine is first started to near-zero when the catalytic converter is up to operating temperature. A blast from a just-started car can contain so much CO that the detector is contaminated and will take awhile to recover. It's not a good way to test a CO detector because it could actually damage the sensor. Don't feel bad, though -- I tried exactly the same thing when I first started testing CO detectors for my article, until I quickly learned that it wasn't a very good idea. The SAS-696D does a self-test of the sensor every 24 hours, so if your unit didn't go into "ERR" mode then your sensor is still okay.

All UL-approved CO detectors are required to have software that delays the sounding of the horn for a period of time that varies inversely with the detected CO concentration. There is great concern by Underwriters Laboratory about not generating calls to 911 by homeowners due to what is essentially a transient CO event. (Such false alarms were a huge problem with the first generation of residential CO detectors, and UL may have overreacted in its current requirements.) In any case, the horn-sounding algorithm used by residential-type detectors is definitely not what I'd consider optimum for use in the aviation cockpit. The algorithm was designed for residential situations where if the horn sounds you can simply go to the nearest door and get out. That's a luxury that we don't have with an aircraft in flight. However, industrial CO detectors cost about 10 times as much ($500 range), which is more than most aircraft owners want to spend. Furthermore, industrial CO detectors require periodic calibration, and don't have the self-test features of the AIM SAS-696D.

Consequently, my advice to pilots is to watch the digital readout and not wait for the horn. If the horn sounds while you're up flying, you're in pretty serious trouble. Hope this helps.

--Mike Busch, Editor-in-Chief

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Mo Brooks

21 Jan 2000

Radio Use At Non-Towered Airports

After having sampled through the responses on this AVweb Question Of The Week, it became quite clear that a segment of the flying population has been all but forgotten about: hearing-impaired pilots! Having been introduced to them while flying into their annual fly-in a couple of years ago, and having intermingled a couple of times since, it's pretty clear that their success is from a strict adherence to procedures. Period.

While I like the radio for position reporting, I particularly like it to ask the other pilot in the pattern as to where they are REALLY at versus where they reported to be at, so I know how big a 360 to do to stay out of their way or off their tail. Who's teaching 3 and 4 mile finals anyway?

While I don't find it necessary to report every change in position, it's sure nice to know that there is other traffic at the airport. 'Course, if you want to have the airport all to yourself for a while just announce your intentions with a strong foreign accent, (foreign to Texas). We've found that Asian (any Asian -- East, West or in the middle) works the best [no 'dis intended]. Most of our area pilots (DFW) will find something else to do for a few minutes while that pilot gets on the ground. It's basically our way of saying welcome and of "holding the door" so they can get through to a landing.

Me? I hear just fine and use the radio with some common sense. More importantly, I use it when I screw up, or when the guy in front of me screws up, to let those behind me know what corrective action is being taken.

Mandatory use? No, just stick to procedures, pay attention, use the windows and leave the testosterone at home. We get it both ways at Grand Prairie, Texas [KGPM]. (Daytime-only tower.)

Hearing-impaired pilots not only fly late-model aircraft but some have quite expensive tastes with the associated budgets, so don't expect them to be in the "tube and fabric" class.

AVweb responds...

There were actually several responses to our QOTW that mentioned hearing-impaired pilots. However, I'm sure that if the FAA were ever to mandate radio use at non-towered airports, there would be special exemptions for hearing-impaired pilots, and possibly for aircraft without electrical systems. However, I'm unaware of any move afoot at the FAA to make radio use mandatory, and a majority of QOTW respondents did not favor such a move.

I suspect that there would be more sympathy for mandating standard traffic pattern entries, but I'm not aware of any move in that direction within the FAA, either.

--Mike Busch, Editor-in-Chief

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Bruce R. Couillard, Sr.

20 Jan 2000

Who Buys New Airplanes?

Am I alone? I have been a pilot and flight instructor for over 50 years, and I can't recall anyone who ever bought a new airplane. Some one out there must have done that so I would like to know "why they did that."

AVweb responds...

Bruce, you've obviously been hanging out with the wrong crowd.

I bought my first airplane in 1968 when I was age 24 It was a brand new 1968 Cessna Skylane which I had built to my specs and picked up at the Cessna delivery center in Wichita, Kan. If memory serves, it cost $25,000.

Four years later, I bought my second airplane ... a brand new 1972 Bellanca Super Viking 17-30A which I had built to my specs and picked up at the Bellanca factory in Alexandria, Minn. That one cost about $40,000.

Why did I buy those airplanes new? That's easy. At the time, the U.S. government was subsidizing the purchase of new airplanes by offering a hefty investment tax credit, first-year bonus depreciation, and accelerated double-declining-balance depreciation schedules. With marginal income tax rates over 50% at the time, it meant that in essence the Feds were picking up half the cost of the new airplane.

Then along came the 1980s and Ronald Reagan, who slashed income tax rates while simultaneously doing away with the ITC and accelerated depreciation. After that, only rich folks could afford to buy new airplanes, and that definitely left me out. It also precipitated a collapse of the U.S. general aviation industry that brought it to the edge of complete extinction.

I'm not complaining, mind you. In my view, the tax incentives of the 60s and 70s represented inappropriate government meddling with all sorts of unintended consequences (like 24-year-olds being able to afford to buy new airplanes). The situation today is much closer to "normal" in my view.

--Mike Busch, Editor-in-Chief

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David Herrmann

20 Jan 2000

Twin Cessna Exhaust AD

Anyway, I am writing to congratulate Mike Busch on the results of the exhaust AD. A lot of folks participated in getting the FAA to listen (kind of remarkable when you think about their history) but I'll bet no one -- absolutely no one -- had the influence on making that AD be one that owners could live with as much as Mike, and he should be recognized and congratulated for that effort. Thanks for the good work. Keep it up.

AVweb responds...

Thanks, Dave, but there's quite a bit of credit to go around for the successful outcome to a three-year nightmare for owners of turbocharged Twin Cessnas.

There was terrific cooperation on this between the Cessna Pilots Association (for which I serve as consultant for twins) and AOPA. CPA (particularly Executive Director John Frank and myself) did much of the heavy lifting on the technical issues, while AOPA helped deal with the politics inside the Beltway.

As an oppressive and unworkable AD was on the verge of going direct to final rule, FAA Administrator Garvey and Associate Administrator Tom McSweeny responded positively to the urgent appeals of CPA and AOPA to issue the rule instead as an Notice Of Proposed Rulemaking and solicit public comment before finalizing the AD.

When the FAA compromised on an unusually short 30-day comment period, AOPA, CPA and AVweb joined forces to get the word out to the affected owners/operators and maintenance organizations, mobilizing them to respond with more than 350 comments to the docket in what the FAA admits was one of the most constructive feedback they've ever received to any proposed AD.

Finally, much credit should go to Paul Pendleton of the FAA's Wichita Aircraft Certification Office, who was tasked with wading through the public comments and deciding what to do about them. In spite of much skepticism on the part of the twin Cessna community, Paul and his colleagues at the Wichita ACO took the public comments very seriously and came up with a Final Rule that was infinitely more palatable to owners than was the original NPRM.

This effort serves as a sterling example of how user groups and the FAA can work together to get the job done. Now, if we could only persuade the FAA to streamline its rulemaking procedures and change its "behind closed doors" rules so that this effort could have been accomplished in six months instead of three years...

--Mike Busch, Editor-in-Chief

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David Williamson

20 Jan 2000

CVR Tapes On NBC-TV

In AVflash 6.03b, you wrote:

NTSB BLASTS BROADCAST OF CVR TAPES ON NETWORK TV: On Tuesday night, Dateline NBC broadcast portions of the audio from the cockpit voice recorder of a fatal American Airlines accident that occurred near Cali, Colombia, in 1995 -- audio that by law is never to be released to the public. The broadcast was made as part of a story "uncovering" the "fact that [although] the official aviation language is English, it is not spoken as often or as well as it should be," according to NBC. NTSB Chairman Jim Hall yesterday issued a statement saying he was "dismayed" by the broadcast. "The use of such a recording -- however it was obtained -- for such a purpose is inappropriate," Hall said. "It does nothing to advance the cause of aviation safety, and only serves to sensationalize a tragedy." Truer words have not been spoken by a U.S. aviation official in some time.

If this was an illegal act on the part of NBC, when can we expect to see charges filed against them? Would this be an NTSB of FAA function? Perhaps a congressional inquiry? It would be really terrible if there was an accident due to cockpit personnel not saying something or giving a warning for fear of hearing their comments on the news! Keep up the great work.

AVweb responds...

In his condemnation of NBC, NTSB Chairman Jim Hall stopped short of saying the broadcast was illegal, so an educated guess would suggest that it wasn't. The fact that the crash took place outside the U.S. may have had something to do with it.

--Mike Busch, Editor-in-Chief

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James Harris

18 Jan 2000

Do As He Says, Not As He Does

The following letter-to-the-editor was published in The Arizona Republic on 14 Jan 2000. I thought it might be of interest to AVweb readers.

Dear Editor:

I wonder if President Clinton and his entourage purposely ignored the flight rules and regulations of the Grand Canyon airspace that the federal government created as they brought in his Boeing 747 Air Force One, at least seven C-141 support aircraft, two C-5 heavy-lift transport aircraft (the largest aircraft in the United States military), a Boeing 727 press plane, four CH-47 helicopters and two executive UH-60 Marine One helicopters.

I am quite sure that none of these aircraft meet the Federal Aviation Administration proposed noise restrictions of ambient minus eight decibels.

I also noticed while I was at the Rim on Tuesday morning that the president and Interior Secretary Bruce Babbitt ignored the curfew and flew right over the flight-free zone at the quietest time of day, just after sunrise. The thumping echo through the Canyon was like nothing I have ever heard. I didn't hear the Grand Canyon Trust or the Sierra Club make any complaints as our president's visit desecrated the Canyon and our community for seven full days.

As a resident and enthusiast of the Grand Canyon, I was truly appalled by the "do as I say, but not as I do" approach of the federal government and the president himself.

John C. Dillon
General Manager
Grand Canyon Airlines
Tusayan, Ariz.

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C.O. Miller

17 Jan 2000

Project ASAP

It was 26 years ago when I ran the aviation part of the NTSB. I'm still trying to retire. The problem is, AVweb and other media sources keep my battery charged and whereas until now I've not commented directly on something that appeared in AVflash, the item about Project ASAP (AVflash 6.03a) can't go by without an observation.

Prez. Clinton touts a "new" program. As Col. Potter, the old philosopher from M*A*S*H used to say... Buffalo Chips! Are memories so short as to forget the near mid air collision reporting system sponsored by the Flight Safety Foundation, "Project Scan", about 40 years ago?. How about the incident reporting systems in the Military that I used to teach at the USC safety school in the mid 60's. Don't the current powers that be realize the success of the Aviation Safety Reporting System (ASRS)? Even the FAA's Project GAIN, its shortcomings notwithstanding, has recognized the value of non punitive forms of safety info exchange identified in all these and other similar programs.

I offer these words as confirmation of a paper I gave at the August 1999 Canadian Aviation Safety Seminar. Its title was "The Most Significant Human Error in the Aviation System". I identified that error as "the continuing failure by persons in that system to apply, effectively and efficiently, the lessons of past mishaps in order to prevent future accidents". Numerous examples were included.

We learned decades ago the benefits of what now is being proposed. We've also seen the FAA, airline and other managements literally fight implementation of comparable suggestions in the past. Could it be that the various safety commissions are staffed primarily by newcomers to aviation, especially politicians, and/or the FAA is primarily run by its Office of General Counsel?

Are these negative folks too lazy to examine accident prevention history?

AVweb responds...

Your suggestion that "the FAA is primarily run by its Office of General Counsel" certainly resonates with my observations. I believe that lots of FAA folks (including many of the head honchos at 800 Indy) would privately agree.

--Mike Busch, Editor-in-Chief

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Millicent Parker

17 Jan 2000

First Solo

Wanted to let you know that Rick Durden's column titled "A First Solo" made an impact on at least one other fledgling student pilot. I'm somewhere between forty and fifty, former stay-at-home mom, now a senior in an aviation management program, and working on my private pilot.

After having dreamed about the day of my first solo for many months, I passed on the opportunity yesterday. Most miserable, defeated feeling since I first fell in love with aviation while managing a small FBO. Took me much longer than most folks, since I had to overcome the handicap of being raised in a family of confirmed aero-phobes. Felt so good yesterday, first few landings were met with compliments from the instructor, then lost my concentration with a slight crosswind and flared too high, and the instructor grabbed the controls for the first time in many weeks. My hopes for solo plummeted, so when my CFI looked over after the next landing and said, "Do you want to take it around by yourself?" I was stunned. Sadly, I declined, and spent the entire drive home filled with self-doubt, wondering if I would ever have the confidence required to pilot an airplane.

Calling one of my aviation buddies for consolation (my family was rather pleased that I didn't solo), instead got an "earful" of stern advice, either decide you are going to do this, or quit wasting your time and money. And trust your instructor's judgment, not every landing has to be perfect.

Reading Rick Durden's column gave me the boost I needed to get back out there, and I've already scheduled for tomorrow afternoon. It may be a few weeks before I have the chance to solo again, but I guarantee you my answer next time will be an unqualified "YES."

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Maurice Simoneau

Canada's Owner-Maintenance Program

In AVflash 6.02b, you wrote:

CANADA READIES "OWNER-MAINTAINED" AIRWORTHINESS CERTIFICATES
Canadian owners of basic aircraft have long and often wondered why they can't perform required maintenance themselves. Now, Transport Canada is poised to let them do just that, with a few strings, of course. On Tuesday, TC's Recreational Aircraft Division announced that it would issue the long-awaited new regulation in "two or three weeks." The regulation will adopt a new category for Canadian aircraft: Special Certificate of Airworthiness -- Owner Maintenance. It will be available for certain types of small, certificated aircraft used for recreational flying, including various Aeroncas, the Cessna 120/140, Piper's J3 and Super Cub models, the Maule M-4 and M-4T, some Luscombes and Taylorcrafts, and numerous gliders.

I believe that some clarifications are necessary in order to dispel any possible misunderstanding concerning the program itself and its implementation.

The new regulations and standards that create the "owner maintenance" program, including a new flight authority, the Special Certificate of Airworthiness - Owner Maintenance, will be formally promulgated by means of the Canada Gazette process, a regulation making process very similar to that of the U.S. Federal Register process. The new regulations and standards are at least one year away from promulgation.

After taking into account public interest, and in order to expedite the implementation of the program, Transport Canada has taken upon itself to prepare a ministerial exemption to the present regulations. This exemption will provide for the issue of a Flight Permit - Specific Purpose - Owner Maintenance; the flight permit will be issued for a period of 12 months, and it can be renewed by the owner of the aircraft at the end of that period of time.

Transport Canada is presently putting the final touches to the exemption. Barring unforeseen problems, the exemption should be signed before the end of January 2000.

Sincerely,

Maurice A. Simoneau
Senior Civil Aviation Safety Inspector
Recreational Aircraft / Aéronefs de loisir
Aircraft Maintenance and Manufacturing / Maintenance et construction des aéronefs
telephone: 1-613-990-9490
fax / télécopieur: 1-613-952-3298

AVweb responds...

Thanks for clarifying the regulatory timeline on this innovative program, Maurice.

--Mike Busch, Editor-in-Chief

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Wally Roberts

18 Jan 2000

Deakin's CANPA Columns

Since I provided some technical review about TERPs to both John Deakin and Tom Young [AVmail 13 Jan 2000], I guess it is my turn to be heard and correct or expand upon a few remarks made by both esteemed gentlemen.

First, let me say that I worked with Tom in much of the process where the Air Line Pilots Association (ALPA) participated in the development of constant angle NPAs (CANPAs) for properly equipped aircraft, and constant rate NPAs for "classic" aircraft where adequate DME is not available.

As Tom knows, I had (and have) serious reservations about trying to make a non-precision approach a "precision look-alike" unless three serious conditions are in place: 1. a precision ILS glideslope could be located along the final approach segment in question, in accordance with ICAO ILS vertical obstacle clearance standards, 2. The visibility required before credit for approach lights is geometrically valid, as it is for real ILS approaches, and 3. Existing non-precision approaches over terrain that won't permit the conservative obstacle clearance afforded in ILS criteria be cancelled. The "have your cake and eat it, too" crowd doesn't seem ready to buy into these essential safety limitations.

I believe the British have seen good results over the years with their CANPA efforts because most of their NPAs are over terrain or obstacle that would support the installation of an ILS, if the money were available. In those circumstances, I believe CANPA is vastly superior to dive-and-drive, with its resultant three-mile final flown at MDA.

A bit more on the issue of required visibility minimums: most of the time we don't realize it, but the visibility minimums on an ILS, before credit for approach lights, must equal the geometry of the distance along a 3-degree slope from the DH/A to the runway threshold. With a 200-foot DH/A on a 3-degree slope, this slant range distance is 3,817 feet. Without approach lights (ILS) this results in a standard ILS minimum of 3/4 of a statute mile. With approach lights, it becomes 1/2 mile. But, let's say the DH/A is higher-than-standard, like KCRW Runway 5 (494 feet, height above touchdown [HAT]). The ILS visibility minimum for all approach categories is 1 3/4 miles, but the LOC minimums vary by approach category, from only 1 mile for Category A and B to 1 3/4 miles for Category D.

The 1 3/4 miles represents the slant-range distance from the DH/A to the threshold. But, the non-precision minimums are based on the 3-degree slope only for Approach Category D. The other categories are permitted higher slopes, based on presumed increased maneuverability as the approach category bumps down. This is fine, perhaps, except where swept-wing jets fall into these lower categories. These non-precision minimums used to be more permissive, until ALPA made an assault on them in the mid-1970s. Unfortunately, the minimums are now being reviewed by both the FAA and the Europeans in an effort to "harmonize" international procedures ("harmonize," as in to make more permissive).

The real heartburn for me comes in these permissive non-precision visibility minimums migrating to the CANPA or "precision look-alike" world. That will NOT be a step towards reducing controlled flight into terrain (CFIT).

Now, on to some specific comments made by both John and Tom:

1. The "7 to 1" final segment slope referred to by both authors does not occur in all non-precision final approach segments. It is a design option provided to the procedures specialist and, when applied, the obstacle is supposed to be charted (I say "suppose" because the FAA dropped the ball on this requirement for several years in their all-too-often inward-looking style). If the 7-to-1 is applied, the obstacle must be located within one mile of the fix, and the slope must be applied to the earliest point the fix could be received, assuming maximum adverse system errors. In the case of DME, this normally would be 1/2 mile, yet most DME sets are much more accurate than that close in to the station.

2. John asserts that an electronic glideslope provides only 200 feet of vertical obstacle clearance based, I presume, on the standard DH/A of 200 feet, HAT. That is not correct; the typical ILS glideslope has 600-800 feet of vertical obstacle clearance at the FAF, decreasing to about 140 feet at a 200-foot DH. It becomes less than the typical non-precision obstacle clearance of 250 feet at about 1.4 miles from the runway. Also, although the DH/A is based on a barometric altimeter, the obstacle clearance at the true DH/A point is not. It should be obvious that the combination of an electronic glideslope and tapering obstacle clearance, that is greater in most of the final segment than that for a non-precision IAP, makes an ILS approach much safer from an obstacle clearance standpoint alone.

3. Tom states that an ILS glideslope assures obstacle clearance inside the DH/A point to the runway. This is partially correct, in that any ILS with 1/2 mile visibility is clear of obstacles along a 34:1 (sometimes 50:1 with new ICAO criteria) slope from DH/A to the runway. But, if the required visibility is 1 mile, all bets are off on that one. Further, you cannot depend on Category I ILS glideslopes to reliable below 200 feet; many are, some aren't, and the feds aren't talking. It is proposed that any CANPA IAP with the DH/A concept authorized, will be 34:1 clear from the true DH/A point to the runway, regardless of required visibility; stay tuned on that one.

4. John states that the 1930s approaches were designed to fly level at minimum ROC. That is true, but those pioneers were dabbling into the unknown and with limited insights and experience. I don't know what the non-precision final approach segment ROC was then (perhaps no one really knew!), but by the 1950s, and prior to TERPs, it was not less than 300 feet, and often 400 feet.

Like I've said in many of my articles, I'm an ILS sort of guy. If you fly your first approach into an unfamiliar airport on anything other than a 200-1/2 ILS, you are compromising your safety. I don't mean your personal minimums should necessarily be that low, but the ILS minimums should.

Finally, RVR is vastly overused in this country. Its use should be limited to unrestricted Category I ILS approaches (200 and 1/2 an no offset, whatsoever, of the LOC) and Category II and III approaches. To use it the way we do today, is not placing the "CFIT avoidance money" on the correct square.

AVweb responds...

Thanks, Wally. (I'm an ILS sort of guy, too!)

--Mike Busch, Editor-in-Chief

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Paul Dowgewicz

18 Jan 2000

Rogue Pilot

I read Michael Maya Charles' "Rogue Pilot" column, and it seems like there's no way to stop someone like Nate. I was wondering if there would be some way to find out who insurers the aircraft. I'm sure they would be interested in obviously unsafe operations. Perhaps Nate would operate safer if repair costs weren't covered by insurance.

There are several downsides, though: Nate may be rich enough that it doesn't matter. Telling insurance companies could turn into an abused snitch method to harass others. If Nate has no insurance, some innocent injured party would have no recourse for claims.

I think the best solution though is to get a group to chip in to buy Nate a good supply of Australian avgas.

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Jim Pauk

17 Jan 2000

"Know your enemy" quote

AVflash 6.03a said:

FOCUSING ON FIGHTING BACK: Someone relatively famous but whose name we can't remember said something along the lines of "to defeat the enemy, you must know the enemy." ...

I believe the quote you were trying to recall was written by Sun Tzu over 2,500 years ago in "The Art of War":

"If you know the enemy and you know yourself, you need not fear the results of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle."

AVweb responds...

Yeah, that's the one!

Thanks, Jim (and all the other readers who wrote in, too).

--Mike Busch, Editor-in-Chief

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Earl Follis

18 Jan 2000

Electric Backup Attitude Indicators

I can't help but wonder why Mike Busch chose to focus on the "hardware" aspects of Robert Bernstein's letter [AVmail 14 Jan 2000], which I see as fairly cut-and-dried. I find the "software" questions he raised to be far more pressing, to wit, "if someone with his experience and ability can't survive a gyro failure in the soup, what hope is there for someone like me?" and "will we REALLY be able to fly the approach in a true emergency situation?".

These are the EXACT questions which came to my mind after the Jacoby accident and which continue to be the subject of numerous discussions with my pilot friends. As a 400-hour private pilot still working on an instrument rating, what are MY chances of not becoming one of the statistics cited in "The Gyro with an Attitude", so that I DON'T die if I lose the attitude gyro in the soup? If Itzhak Jacoby couldn't increase the odds with his experience and expertise (and, I would assume, either a standby vac or electric AI), how in the world can I?

AVweb responds...

Your question is excellent, Earl. As someone who trains three or four times a year in a high-fidelity flight simulator at FlightSafety International, I've probably done more partial-panel-under-stress flying than most GA pilots.

Based on my sim experience with attitude gyro failures, I believe that the detection of an attitude gyro failure is an acquired skill that cannot be gained or maintained through conventional in-aircraft training (where the CFII slaps a no-peekie over the instrument). On the other hand, a really good simulator (like the ones at FlightSafety) provide very realistic instrument failure scenarios.

Real gyro failures generally occur slowly, and dealing with them involves several stages. First, there's an uneasy feeling that "something's wrong with this picture." Next, there should be a conscious effort to cross-check all instruments to determine which one is inconsistent with the others. This takes both practice and aptitude.

In my experience, the most dangerous gyro failures of all occur when the airplane is on autopilot and the autopilot attempts to fly the failing gyro while the pilot is preoccupied with something else. This is complicated by the fact that different autopilots rely on different gyro inputs. For example, my Cessna 400B autopilot flies by reference to the attitude indicator, but an S-Tek autopilot uses the turn coordinator and ignores the attitude gyro. I know of no GA autopilot that compares multiple instruments to detect when one is lying. In my Cessna T310R, if the attitude gyro starts rolling over and playing dead, the autopilot will happily continue to fly by reference to the dying gyro, generally resulting in a well-developed high-speed spiral followed by an autopilot disconnect and a nearly-uncontrollable airplane.

I've dealt with dozens and dozens of realistic simulated gyro failures at FlightSafety, plus a few actual ones. I've shot lots of precision and non-precision approaches using just needle, ball and airspeed. It can be done, but it's very difficult and a skill that's quickly lost if not refreshed by frequent recurrent training. Even in the hands of a well-trained pilot, there's very little margin for error. A momentary distraction is all it takes to wind up in an unusual attitude.

Speaking of unusual attitudes, I've had several occasions where sim instructors have put me into an inverted attitude with a failed attitude gyro. If memory serves, each of these episodes was "fatal" in that I was unable to recover before hitting the "ground" or overstressing the "airplane." Maybe Patty Wagstaff could handle a gyro-out recovery from an inverted attitude, but it's definitely beyond my ability.

I'm sure every pilot who read the horrifying story of the Itzhak Jacoby crash mumbled "there but for the grace of God go I."

--Mike Busch, Editor-in-Chief

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Ken Mackin

Class B and the Veil

I was wondering... The transponder in my plane has four, count 'em four, digits on it. If I've got to have it set to 1200 to fly VFR anyway, why can't I tune the thing to 1245 if my cruise altitude is 4500 feet? It's not as good as an encoder, but it's better than nothing and is absolutely free.

AVweb responds...

Because that wouldn't give ATC your actual altitude, but only the last altitude you remembered to dial in. When descending from 4500', how many pilots would religiously readjust the transponder code every 100 feet? And even if they did, would that be safe?

Of course, it wouldn't even be possible to do that, since the transponder codes contain only the digits 0 through 7 (no 8s or 9s on the dials). Not to mention that altitudes above 7700 feet would be out of range.

Other than that, it's a great idea. <g>

With encoders selling for less than $250, there's no excuse for any transponder-equipped aircraft not to have Mode C these days.

--Mike Busch, Editor-in-Chief

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Rex Hardy

16 Jan 2000

Clinton's Aviation Safety Plan

I hope AVweb will be the first to speak up about this ridiculous scheme. Evidently the Presidential advisors failed to do their homework. Mr. Clinton, hoping to enhance his "legacy," has introduced a non-punitive incident reporting system for the aviation community.

Such a government-sponsored program -- NASA's Aviation Safety Reporting System (ASRS) -- has been operating successfully for more than twenty years. It is funded by FAA and is described in the FARs. Approximately 3,000 reports are received by ASRS each month from airline and general aviation pilots, air traffic controllers, and others in the aviation community. The project is directed by an advisory committee representing all segments of the industry, and is enthusiastically supported by most airlines. Many pilots routinely carry ASRS reporting forms in their flight bags, and the forms are available in their operations offices.

As a member of the small group of retired pilots and controllers recruited by NASA in 1978 to develop and operate the Aviation Safety Reporting System, I originated (and edited until my retirement) the monthly bulletin "CALLBACK"  and wrote the book, "CALLBACK: NASA's Aviation Reporting System" published in 1990 by the Smithsonian Press, The book gives the history of the project and discusses the various types of incidents reported and the lessons learned, and contains a forward by the late Donald Engen.

The Presidential announcement ignores all this. I am dumbfounded!

AVweb responds...

Rex, I've been a religious reader of CALLBACK for many years (I miss your name on the masthead!), and am certainly one of those who carries a good supply of ASRS reporting forms in my flight case. (They used to be hard to come by, but nowadays you can download them from the ASRS Web site.)

In fairness to the Clinton announcement, however, I believe that its primary thrust was to address the problems with operational data voluntarily reported to the FAA by airlines, not crewmembers or controllers. In recent years, the FAA has been asking the airlines to provide operational data collected through FOQA and other programs, and crews are understandably concerned that such data will be used by the FAA to pursue enforcement actions against individual crewmembers. I'm sure you recall that similar concerns were voiced when cockpit voice recorders were first introduced, until rules were introduced to prevent CVR recordings from being used by the FAA for enforcement purposes.

The Aviation Safety Reporting System was developed to encourage individuals such as pilots and controllers to report safety problems without fear of FAA sanction. The reporting of data to the FAA by airlines that could subsequently be used to prosecute pilots is an area that the ASRS was never really designed to address. In that context, it does seem clear that some sort of additional ground rules were needed to protect crewmembers against the punitive use of data voluntarily submitted to the FAA by their airline employers.

For another viewpoint on this subject, see Phil Kolczynski's fine article "FOQA: Are Legal Issues Interfering With Safety Improvements?"

--Mike Busch, Editor-in-Chief

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Robert Cole

15 Jan 2000

Logging High Performance Flight Time

The FARs say that a high-performance aircraft is one with an engine of more than 200 horsepower. This in my opinion is very vague. My question is: Would a typical light twin be considered high-performance if each engine is say 180 horsepower but the total horsepower is more than 200? If you followed the regulation literally, it would mean that a Cessna 182 is a high-performance aircraft yet the twin Beechcraft Duchess is not. Could you please clear this up for me?

AVweb responds...

It all depends on which authority you ask. Some FAA inspectors say the C182 is a high-performance airplane and the Duchess is not, while others hold the opposite view.

The Pilot Examiner Standardization Section of the FAA says that the high-performance endorsement applies only to single-engine airplanes, and the logging of twin time is a separate matter. Sounds reasonable to me (and not much that the FAA does is reasonable).

--Howard Fried, Columnist, Eye Of Experience

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Ron Lawhon

15 Jan 2000

What Is A Canard?

The other day a pilot friend of mine asked me for a definition of a "canard." Instantly, I answered that a horizontal stabilizer positioned toward the nose of an aircraft is called a canard. Technically, I am sure that there are holes in my definition, but I thought at least I was close. He then gave me an excerpt form a dictionary definition of canard . It read:

"An extravagant or absurd report or story; a fabricated sensational report or statement."

We checked another dictionary and found a similar definition, with no secondary definition for the words' aviation use. So this prompts my question what is a canard anyway, and where did it get its name?

AVweb responds...

Ron, the dictionary that we use at AVweb -- Webster's New World College Dictionary -- defines canard in the aviation sense as its second definition, as follows:

2. a) an airplane whose horizontal stabilizer is located forward of the wing or wings; b) the horizontal control and stabilizing surfaces in such an aircraft.

So you are not confused, you are right on the money. FYI, I've been told that the term derives from the fact that "canard" is the French word for "duck" (which is confirmed in the dictionary), and the silhouette of a canard aircraft is similar to a duck in flight -- because the duck has its wings toward the rear, and a long neck stretching out in front. Makes sense to me!

--Mary Grady, News Editor

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Robert Bernstein

14 Jan 2000

Electric Backup Attitude Indicators

I'm a relatively low time instrument pilot (about 400 hours) who recently transitioned from a C182 to an F33A. Lately, a friend (who flies a Duke) and I have been having some interesting and serious discussions stemming from Itzhak Jacoby's recent crash. What struck me (and I'm sure thousands of others like me) immediately after the accident was the obvious question, if someone with his experience and ability can't survive a gyro failure in the soup, what hope is there for someone like me? (I know that the investigation is still in progress, and maybe another cause will be found, but a vacuum or gyro failure seems the most likely cause at present).

Are we all kidding ourselves with the partial panel practice we get in training? I'm quite familiar with the fact that gyros don't fail suddenly like they do when the examiner slaps the no-peeks on them and that failure is a gradual process, but is it a guarantee that in a real life situation even with proper training we won't be able to pick up the discrepancy and sort out the problem until the aircraft is in an unrecoverable attitude? Or, if the problem is picked up in time, will we REALLY be able to fly the approach in a true emergency situation? My friend is convinced that the answer is a resounding "no" to both. I look back both to my partial panel work during my instrument training and now, and I never thought that flying partial panel was such a big deal. My friend points out that it is precisely that attitude that gets pilots like me and others with a lot more hours into trouble when the real thing happens. His point is that no amount of partial panel work can prevent a crash if the pump or the gyro takes a hike at the wrong time.

How right is he?

I remembered having read an article Mike Busch wrote for IFR and AVweb about five years ago ("The Gyro with an Attitude") in which you addressed this topic, and I just reread it. Your first line indicates that the accident database and university research seem to agree that the probability is that a gyro failure in instrument conditions will result in a crash, but what are the actual numbers? Right now, my Bonanza has neither an electric AI or a standby vacuum. I had been considering the purchase of a standby vacuum, but wouldn't it make more sense to install a small electric AI instead? Since my F33A uses a pressure rather than a vacuum system, I wouldn't be able to install the cheaper standby vac that runs off manifold pressure anyway. So, I don't think that there would be a huge difference in cost between the second vacuum and the second AI even if I went with the more expensive 2-1/4" instrument.

I know that Hal Shever's petition was nixed by the FAA, but I haven't seen much written on this topic since your article unless I've just missed them. Especially in light of the tragic Jacoby crash, I think a revisiting of this issue would be extremely worthwhile.

I can't begin to say how much I've learned from Mike Busch's articles both on AVweb and in the magazines and how much I value his expertise. He's been a mentor to thousands of us, and I really appreciate his efforts. Keep up the great work.

AVweb responds...

Bob, I'm truly flattered.

The choice between a backup electric attitude indicator and a standby vacuum system depends on the particular aircraft and avionics configuration. Do you have panel space to accommodate a second attitude indicator? Do you have other vacuum-powered instruments (such as a DG or HSI)? Does your autopilot depend on the primary attitude indicator?

An electric backup attitude indicator offers very reliable backup to a vacuum AI, and offers protection against certain failure modes (such as a disconnected vacuum hose or plugged air filter) that could disable the vacuum instruments even if a standby vacuum source was available. On the other hand, an electric backup AI probably won't run your autopilot (if indeed your autopilot depends on the primary AI ... some do, some don't), and won't provide a backup for your vacuum-powered heading indicator or HSI (if you have one). And it does require some premium panel space. (Stashing an electric backup AI in some dark corner of the panel where it's hard to scan isn't a good idea.)

--Mike Busch, Editor-in-Chief

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Larry Baker

14 Jan 2000

Security Cameras In The Cockpit

The security cameras in the cockpit are proposed as a forensic tool to determine what went wrong. Why not have a third pilot in the cockpit to prevent the perceived problem from occurring? Many conflicts have been brokered by the third man in the past.

AVweb responds...

Just guessing here: Because the third pilot costs a whole lot more than the cockpit camera?

--Mike Busch, Editor-in-Chief

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Tom Young

13 Jan 2000

Deakin's CANPA Columns

I wrote the attached counterpoint to John Deakin's recent Pelican's Perch columns concerning Constant-Angle Non-Precision Approaches (CANPA). I believe the flying public needs to consider additional information on these subjects to conduct the safest operations possible.

First, a word about my qualifications. I was an Air Force and Air Force Reserve transport pilot and instructor pilot for thirteen years. I recently took a "buy-out" from my Part 121 airline, having completed 27 years including 14 years as a BAC-111 and 737-200/300/400 captain. I spent 15 years as an ALPA Safety Rep and Accident Investigator. During this time I took part in seven major NTSB accidents as an investigator and provided written comments to the NTSB on six other major accidents. I also chaired the ALPA Charting and Instrument Procedures Committee for over 7 years and participated on both the Flight Safety Foundation CFIT and ALAR efforts.

Now, here's my counterpoint. (Note: This article has been checked for TERPS accuracy by Capt. Wally Roberts, the noted expert on TERPS issues.)

While the author has raised a number of points worthy of discussion, I am troubled that he has not had the opportunity to consider the factors that has lead to a changing industry view on flying non precision approach procedures. Flying perfectly good aircraft into the ground (CFIT-Controlled Flight Into Terrain) continues year after year to cause nearly fifty per cent of air carrier crashes worldwide. Flight Safety Foundation statistics clearly show that since the mid 1970s the accident rate per million departures has remained nearly the same. With the increase in departures as the industry grows (and without improvement in the rate) the industry can expect to have one hull loss per week by the year 2010-2015. The vast majority of CFIT accidents happen while flying NPAs (non-precision approaches).

With these facts, two industry groups were formed under the banner of the Flight Safety Foundation to look at ways to stem this unacceptable tide. The first group was the CFIT Group and the second group was the ALAR (Approach and Landing Accident Reduction Group). Both groups were staffed by a highly talented and motivated cross section of individuals representing airlines, regulators, manufacturers, line pilots and research institutions. The Constant Angle Non Precision Approach (CANPA) was one of several improvements suggested by both groups to reverse this needless loss of lives and aircraft.

A number of positions in author Deakin’s articles on CANPA require comment and clarification .

First, NPAs were never specifically designed to always fly at minimum required obstacle clearance altitudes (250 ft above the controlling obstacle inside the FAF). In Europe they are not flown this way. In the US it became common to use the D/D (Dive and Drive method) in the 1950’s when some higher performance military jets had trouble breaking out and lining up on certain runways. The FAA is absolutely neutral on the method of flying these approaches. No one is holding a gun to any one’s head requiring them to use CANPA. However, there are many pilots who desire an improved method of executing NPAs because they recognize NPAs have a much lower level of safety than do precision approaches.

Second, author Deakin states that the use of CANPA will cause more missed approaches . Capt. Paul Woodburn and Capt. David Flemming of British Airways have data including FUQA (digital flight data recording) data to show that their pilots have had greater success using CANPA with fewer missed approaches. In fact both BA and KLM have used their own versions of CANPA for over twenty years.

Third, author Deakin indicates that it is perfectly acceptable under TERPS to cross the FAF and instantly descend to MDA. This is not true. Under Paragraph 289 of TERPS it is necessary to travel seven feet forward for every foot of descent in this segment prior to reaching MDA in order to insure required obstacle clearance. Admittedly, however, in the real world it would take an amazing descent maneuver to threaten one’s self under this provision.

I believe the author has missed a major opportunity to inform his readership of the really serious flaws of the NPA and why the NPA is so dangerous no matter what method is used to execute it. The "Boogey Man" is the NPA itself as the element that needs to be corrected. Hard data from the Netherlands Research Labs shows that NPAs are five times more likely to result in an accident world wide than precision approaches and eight times more likely in the US. Consider that American Airlines believes that their average pilot flies but one non precision approach per year. This statistic is most significant since it indicates that most airline pilots do not fly an adequate number of NPAs per year to retain their proficiency. One has only to look at the number of CFITs on NPAs to bear this out (Bradley, Cali, Dubrovnic, Halifax etc).

One of the most serious flaws of the NPA is the low visibility it is allowed to be used in. The NPA may work well for conditions of reasonable ceilings and visibilities (600 and 2 on a well designed approach). However it becomes a very poor approach at 300 and ½ and an even worse approach at 300 and RVR 2400. This is due to the inherent limitations of not having a glideslope and inadequate vertical visual references during periods of limited visibilities. A three degree descent path to touchdown is considered ideal to match the performance limitations and flight deck visual cutoff angles of modern high performance aircraft. This three degree glideslope requires 318 ft per mile of descent to stay on the ideal three degree slope. This three degree slope will require approximately one mile of visibility for every 318 ft that the ceiling is above the airfield thus if the ceiling was 300 ft AGL you would need about one mile of visibility in order to see the airfield at MDA. (Yes, I know that the FAA only requires minimum visibilities to be legal to fly the approach) What I am talking about is the practical necessity of being able to see the field when you get to minimums no matter what method you use.

While I believe that author Deakin has provided a service by showing the horizontal limitations of the NPA and angled final approach segments (and the resulting dangers), he missed providing knowledge to pilots that they are only guaranteed 250 ft of obstacle clearance vertically from the FAF to the MAP. Remember, this is the altitude the author would have us fly above the obstacles all the way from the FAF to the MAP. This is scary enough on a clear, calm sunny day-it is less than comfortable at night, in limited visibilities and in wind and turbulence. Pilots also need to understand that once they have started their descent from the minimum required obstacle clearance altitude they must visually acquire the obstacles in the visual segment which may penetrate a normal three degree glideslope. This is one of the advantages of the ILS where the precision glideslope is obstacle protected in the visual segment.

An additional danger of NPAs is the location on the NPA where aircraft crash. According to extensive data which was collected and provided by Don Bateman of Allied Signal (now Honeywell) it is one to three miles short of the airport, on centerline and on a near three degree descent path. Why does this happen? It may well have to do with the difficulties pilots have with depth perception in limited visibility as well as possibly being caused by very high work loads.

Another issue which has to be raised about the safety of the NPA relates to the lack of a stabilized approach. The whole world believes in the stabilized approach for high performance aircraft. This is the Holy Grail and for very good reason. However, according to the "old school," the one exception to the need for stabilized approaches is while flying the NPA. In this case, the stabilized approach concept goes out the window and pilots are encouraged to drive along level at 250 ft above the rocks. It is no secret to anyone that this maneuver requires very high power levels as well as nose up deck angles to maintain level flight. When high performance aircraft are in the approach configuration they typically fly 2-2.5 miles per minute. Thus when the airport is at minimum visibilities (as low as 1/2 of a mile), the typical pilot will have only 15-20 seconds to pick up the field, transition to a stabilized approach and to reach the touchdown point. It seems that from a very nose high attitude with high power settings, achieving a stabilized approach appears like a rather Herculean Task. It is also very difficult to judge just when to begin this descent when in limited visibilities with different deck angles than pilots are used to.

The limitations of the human eye to adequately perceive depth under minimum visibilities is another very serious limitation of nonprecision approaches. There are numerous accidents to prove that not only must pilots be able to see the runway environment they must also be able to judge their height in the absence of a glide slope or adequate vertical visual guidance. I believe The Delta Airlines MD-80 accident at LGA to be an excellent example of this phenomenon. This approach had an offset LOC, a glideslope which was unusable below DA/DH (which was higher than standard) and vertical visual guidance which was further down the runway than could be seen under the required 3/4 mile visibility. The pilots ended up with legal minimums on an approach which netted them neither a glideslope nor vertical visual guidance at night with rain on the windshield and lots of wind and turbulence. It is no wonder they sheared the gear off on the edge of the approach apron. The NTSB conveniently disregarded the above information and blamed the accident on problems with the Captain’s contact lenses.

Pilots must also understand the limitations of the NPA as opposed to the precision approach. Most pilots do not understand the reason why they are flying a NPA is that the airport or the runway environment may not qualify for a precision approach under TERPS because of terrain or obstacles. Providing a CANPA with a nearly straight in approach and DME distances to this situation may well be providing a higher standard than is currently available but still no where as high of a standard as a precision approach.

I must also take the author to task for his continued references to "real pilots" and their abilities to "push the envelope to get in" where "wimps" ended up going to the alternate. In my 27 year part 121 career, I never felt that the objective was to provide a visible display of the flight crew’s high levels of testosterone. I always felt it was my job to get the folks to their destination safely even if it took a little longer. In my opinion, it is much better to get the folks there a bit late than never at all. Yes, airplanes do crash. How many of these accidents were caused by "can do" crews who never thought that they would ever be involved in an accident.

I would also like to protest author Deakin's use oft Capt. Jeppesen and at the shot at the current management of Jepp for providing CANPA information to its subscribers. The reason Capt. Jeppesen started providing his airport information products was because he was an innovator who felt that pilots needed the information that he provided and they needed to have better ways of flying their aircraft in adverse weather conditions. While Capt. Jeppesen was never substantially involved in the formulation of TERPS criteria (which provides for vertical and lateral obstacle clearance), I can not imagine him liking to have options denied to him and vertical airspace taken from him if he felt that it added to the safety of his operation.

As for Jepp providing the data for constant angle NPA, they have long done this for the glass airplanes at the requests of their customers. Again, it was the customers of Jepp who requested the CANPA information be placed on the plates. If you do not like the information you are in no way obligated to use it-What if Jepp had refused to publish any plates other than low frequency range approaches-think they would still be around?

The Jepp briefing bulletin is an added service which most pilots value to explain the many changes to our IFR world and certainly one of the better sources for procedural information in the total absence of any definitive guidance from the FAA. (I believe the FAA Instrument Flying Handbook was last rewritten around 1972-certainly no changes since then!)

Just who should the author be taking to task? Should it be the FAA and the airlines for continuing to accept some very deficient approaches which could be greatly improved by being replaced or redesigned to fly straight in stabilized descents? Could it again be the same folks who willing accept unrealistically low visibility minimums when it is in their interests (e.g. CRW where one ILS has higher visibility minimums than the LOC to the same runway)

Who ends up winning as the result of this article? I hope it is the line pilot faced with getting his passengers safely to their destination. I hope he now understands more about the deficiencies of the NPA and how to minimize these deficiencies. Do I agree with author Deakin that pilots should NOT fly NPAs using the CANPA method? Not for a minute! I hold that pilots are exposed to much less danger while flying a stabilized approach and not trolling for the airport. Imagine having a Fed on board, leveling at DH on an ILS and going trolling for the airport. While I understand author Deakin’s concern about getting down to minimums in time to line up with the field and his concern about pilots attempting to salvage an approach when the airfield is spotted too late, I believe that the advantages of CANPA greatly outweigh the dangers outlined by the author Deakin.

Finally, what can we do as line pilots to minimize the dangers of flying NPAs? First, we need to understand the limitations of NPAs. Second, we should not accept poorly designed NPAs in low visibility conditions that can not be flown straight in utilizing a stabilized approach. Third, request the precision approach even if it might take a little bit longer. Fourth, we need to identify these substandard approaches to NASA via the ASRS, the FAA and our managements so they can be revised.

AVweb responds...

My compliments to Tom Young for a very nicely written letter. He may be surprised to find that I agree with him a lot more than I disagree!

One reader wrote "I don't care what Bonanzas and other small airplanes do." Well, I do care. I seem to have my big feet (some would say big mouth) in many corners of the aviation world, and most of my columns reflect that. I do my best to point out when I'm talking about "big iron," but many pilots of those airplanes seem to take my comments very narrowly, and as if they apply only to the particular airplane they happen to fly.

I certainly agree that Wally Roberts is a world-class authority on TERPS, and I ran my column by him before putting it up, too. He is an incredible resource, and I've long since learned that when we disagree, I really need to take another look.

I have indeed considered the factors that have led to the development of hardware, software, and pilot techniques to avoid CFIT. For the airplanes equipped for CANPA, it's a big improvement.

I'm a little uncomfortable with the sensationalism implicit in the "one hull loss a week." The old saying "Figures don't lie, but liars can sure figure" comes to mind, but with NO attempt to call Tom a liar! I believe it was Lizzie Dole who first started parroting that line (or was it "Scary Mary"?), and I'm wary of just about anything she says.

Make no mistake, I approve of CANPA, in aircraft equipped for it, with crews trained for it, at locations surveyed for it. I approve of all efforts to provide those factors. My compliments to, and my admiration for those groups who developed it.

But I do not approve of "stretching" CANPA to fit airplanes, crews, and approaches where it is not suitable. I am seeing evidence of people trying to do just this, and that's why I wrote the column.

Tom is clearly wrong in his comments about where NPAs were developed, and when. The procedure goes all the way back to the four-course LF Radio Range in the thirties, and it was SPECIFICALLY designed to allow flight at a very low altitude for some distance. I'm reluctant to use the 250-foot figure, because I am not sure of the actual number used in those days, but that's pretty close. Flying along at 250' over surveyed obstructions is no more hazardous than flying to 200' on a precision approach without a radio altimeter. Both use the baro altimeter.

I would be most curious about the "rules" BA used to determine that CANPA use leads to fewer missed approaches. Almost anything can be "proven" if you skew the data, or set the conditions to prove your point. It seems pretty obvious to me that if you shoot 1,000 approaches with a 747-200 (no glass, no GPS, just the old inertial, and the old VOR or ADF) using the "classic" NPA procedures, and shoot those same 1,000 approaches using some sort of cobbled up, home-brew, "constant angle" descent (not CANPA), the classic method will get you in with fewer misses. I believe the classic method will be safer, too, but without doing a LOT more approaches and "counting the crashes," it's impossible to prove, either way.

I am aware that KLM has used their own style of CANPA for years, with what they consider great success. In extensive discussions with a KLM crew member, I was unable to find out just what their requirements are, and just exactly what they're doing, so I can't comment. What I did hear, I didn't like.

Tom is quite correct about my erroneous comment on descending "instantly" after crossing the FAF, there is indeed a 7:1 slope.

The really dangerous part of the NPA is not the NPA itself, but the lack of training on it. The very rarity of the maneuver in day-to-day airline use (yes, there are exceptions!) has led the big carriers to all but ignore training in this area. It takes an inordinate amount of costly sim time for the perceived benefits. If the airline chooses to short this vital training, then the only reasonable approach is to BAN ALL NPA approaches at that airline. If they want to substitute CANPA for NPAs, then equip the airplanes for CANPA. But DON'T screw around making home-brew approaches similar to CANPA, with equipment not designed for it.

Regarding the "scariness" of flying along at 250' AGL on a nice day, perhaps we ought to require all pilots to serve a years as crop-duster pilots (severe tongue-in-cheek mode, here).

I think the reason for all those crashes on centerline about three miles short of the runway is that the pilots haven't done enough of them, and they're overloaded. Simple solution, ban 'em, or train for 'em. Modern training is sorely lacking in this area.

I think the whole world has become something of a slave to the "stabilized approach." Yes, it's a good idea in high-performance JET aircraft. Unfortunately, it seems to be "migrating backwards" down the food chain, and I see people attempting to use it in prop-driven aircraft with low performance, where the AIRLINE STABILIZED approach is NOT the same as the "stabilized approach" we're looking for in recips.

I'll also quibble with the "very high power levels" while flying level at MDA on a classic NPA. If that is the case, the airline or the pilot is using far too much flap. I know of no modern jet transport that cannot be safely flown level to the FAF in a landing configuration, descended at about 1,000 to 1,500 fpm to MDA, then flown level again with anything more than modest thrust changes, and no other configuration changes. But it is "different," and it needs to be trained. The less it is used on the line, the more it needs to be trained in the sim, an often-overlooked point.

I certainly agree with Tom's analysis of the DC-9 crash at LGA. A difficult and demanding approach if ever there was one. It may be time to have another look at minimums at such airports, taking some of those factors into account.

But a "home-brew" CANPA approach wouldn't have solved the problems!

I do apologize to those who mistook my attempts at humor as serious slams at other pilots. I believe there is room for humor in even the most serious subjects. But there is a very real issue over whether an airliner "gets in" or not. That approach may, one day, be the only approach you'll get, at your alternate, with minimum fuel remaining. Even with the best of flight planning, it CAN happen.

My "shot" at Jepp and the FAA is that they are not clearly defining when the CANPA data can and cannot be used. I believe Captain Jeppesen would be unhappy over that. Modern technology is now getting to point that approach charts can be more customized than ever before, so I'd like to see CANPA data listed only for those who can safely use it. Or make it clear who CAN use it.

"Finally, what can we do as line pilots to minimize the dangers of flying NPAs? First, we need to understand the limitations of NPAs. Second, we should not accept poorly designed NPAs in low visibility conditions that can not be flown straight in utilizing a stabilized approach. Third, request the precision approach even if it might take a little bit longer. Fourth, we need to identify these substandard approaches to NASA via the ASRS, the FAA and our managements so they can be revised."

I couldn't agree more! Solid gold, every word.

--John Deakin, Columnist, Pelican's Perch

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Chuck Rau

13 Jan 2000

Richards-Gebaur Airport Closure

I live across the state line in Kansas and could not vote on this. The Kansas City, Mo., City Council has had a long history of bad judgements.

It was also proposed to leave the runway as part of the airport and buy up land to the west to enlarge the facility. This would have allowed air cargo from Mexico and Canada to join the train/truck traffic. But I see the railroad trying to get rid of their competition.

This has gone on for over a hundred years in KC. In the 1800s, where the Missouri and the Kansas (KAW) rivers intersect, the railroad built a bridge. The bridge was placed across the KAW and just happened to be low enough that river boats could not navigate. This forced the river traffic to the north to Omaha and made the railroad the only transportation to the west in Kansas. This cut out their competition.

I see the railroad doing the same thing to Richards-Gebaur. It is too bad, because the runway could handle any size aircraft and could have served as an emergency strip to air carrier and military, besides the cargo.

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Pitch Johnson

13 Jan 2000

Richards-Gebaur Airport Closure

I m surprised you didn't pick up on the inherent internal contradiction in the NOTAM about Richards Gebaur:

"AP CLSD PERM 10 JAN 05:59 TIL UFN."

Good example of government-type nonsense wording:

AVweb responds...

Pitch, ironic, isn't it? Apparently, there's no official government abbreviation for "Until The End Of Time." If there are any government types out there, may I respectfully suggest "THFO" (has to do with freezing).

Thanks for reading AVflash so closely!

--D. K. (Kim) Broadwell, Newswriter

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Ken Meintzer

13 Jan 2000

Live Webcam at Palomar Airport

I'd like to start by saying that AVweb is a part of my daily life and the site that my computer signs on to each and every day. I work at a television station and I am always amazed at the amount of information that you gather that doesn't seem to make the mass media accounts. You provide a great combination of entertainment, information and advocacy (what a balancing act that must amount to!) and even manage to ruffle a few feathers now and then with your tongue in cheek editorial style. Keep up the great work!

I'm writing to extol the pleasure that the link to the live webcam at Palomar Airport [http://www.camzone.com/cams/airportcam/stream.html] in San Diego brings me. Since finding the link on AVweb's new ATC Audio and Web Cams link page, I have kept the site on my desktop at work allowing me to check in on what's happening there. It's very relaxing to be able to get away to another place (much warmer than the weather we're experiencing up here in Alberta, Canada right now!) and especially to be able to just watch people and planes coming and going. I spend a fair amount of time at airports throughout North America just watching the action and listening to my scanner...now I can enjoy my favorite stress reliever anytime, particularly at work where stress relief is critical!

So thanks again for creating my favorite place to 'hang out' on the web and for satisfying all of the aviation aficionados passions!

AVweb responds...

Thanks for the kind words, Ken.

--Mike Busch, Editor-in-Chief

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Jim Densmore

13 Jan 2000

Contaminated Avgas Downunder

My second reaction to the Australian fuel crisis and the potential for thousands of lost jobs, lost revenue, major headaches for a great many people was:

See? General aviation is a significant part of the infrastructure. Stop killing aviation and airports, they are vital to this country. It's hard to tell that this is the case when they disappear one at a time, but when the whole fleet is grounded, as in Australia, it is OBVIOUS.

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David F. Pawlowski

13 Jan 2000

Security Cameras In The Cockpit

You wrote:

"AVweb wants to know, what use are remote security personnel when you're in trouble at 41,000 feet?"

Assessing a terrorist threat for a Delta Force style commando response...

Gathering evidence the next time a drunken sleep deprived passenger "interferes with a flight crew" a la police car cams/drunken driver stop videos...

Checking the flight deck for compliance with company policy (remember that drunken NWA pilot set a few years ago?)...

Determining condition and reaction of flight crew during in an in-flight emergency post mortem.

That enough?

AVweb responds...

In which cases this technology becomes less useful for "security" and more useful for "employee monitoring" or "enforcement."

--Joseph E. (Jeb) Burnside, Executive Editor

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David M. Grove

13 Jan 2000

Uncontrolled Airports

I wish that someone would take the ball and please refrain from using the term "uncontrolled airports" in the situation where there is an existing traffic pattern, which means there is a means to enter the traffic pattern in a manner that promotes safety.

If I were king I would change the wording to non tower airports and tower airports and private or restricted fields requiring prior approval for use.

I have been flying for 35 years and the situation at non-tower airports has become a major safety issue to me. Most of these airports have traffic coming from right, left and straight in.

I have been at OKV (Winchester, VA) and have observed departing traffic taking left traffic, straight out and right traffic departures and the same thing for arriving aircraft.

I hope a can light a spark somewhere? We have a serious safety issue and turning our heads will not make it disappear.

AVweb responds...

David, the recent trend is to call them "non-towered" rather than "uncontrolled." But a lot of us (including you) learned to fly when "uncontrolled" was the official phrase, and old habits are hard to break. Heck, I still catch myself saying "fog" instead of "mist" and occasionally even "TCA" instead of "Class B Airspace."

--Mike Busch, Editor-in-Chief

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Owen C. Baker

11 Jan 2000

A Memorable Jet Transport Landing

Dan Baxter's letter of 27 Dec 99 recounting his arrival in a jet transport in Bien Hoa, Viet Nam via a tight overhead 360 degree spiral descent brought back to mind another memorable jet transport arrival in Viet Nam back in 1969.

This one took place at Marble Mountain Air Field, a small U.S. Marine Corps' helicopter base located a few miles to the east of large Danang Air Base, which was a major tactical jet base and which also served as a Viet Nam arrival point for FNG's starting their tours in country.

We exhausted rotor heads stationed at Marble were aroused from our slumber one night by a horrendous roaring sound outside of our hootches. It sounded like a locomotive going full blast was going to come right in through the hootch window. Some of us old timers who had been through many mortar and ground attacks of the base were curious about the source of the noise, but were very tired and not curious enough to do anything but roll out of our bunks onto the hootch floor, place a flak jacket over our heads and try to go back to sleep. This was a fairly common response to a mortar attack, and the greatest hazard involved we felt was actually going to sleep on the floor and waking up the next morning with some very aching bones.

When we got up the next morning and walked over to the commonly shared toilet facilities we were stunned to see a huge jet transport sitting at the south end of our little 3 or 4 thousand foot runway. We learned that the pilot flying one of the contract airliners (a stretch DC-8 if I remember right) bringing in a hundred plus FNG's had decided to make the final portion of his approach and landing at Danang in a visual mode. Both the Danang runway and the Marble Mountain runway were oriented north - south and the pilot got a little disoriented and landed at Marble instead of Danang. The horrendous roaring that we had heard during the night was this poor fellow applying full power thrust reverse, plus probably every other means at his disposal to stop his machine. I wonder what first went through his mind when he first realized how little runway he had remaining to stop his plane in. But stop it he did and there it sat the next morning a few feet from the south end of the runway.

We all wondered what would happen to the plane (and also the pilot) and there was much speculation about how, or if, the plane could be flown out. Eventually a large tug with a tow bar was brought in and the airplane was pushed backwards to the north end of the runway -- there was no room for any turning or taxiing. When it became evident that the intent was to fly the plane out by taking off from that short runway we all expressed opinions on the probability of success, placed bets one way or the other and jockeyed for a position to view the forthcoming display.

The aircraft engines were started, brakes were held, power levers were advanced, sand and dust were blown a tremendous distance behind the plane (Marble was located on a sandy beach), and slowly the plane began to roll. Now before becoming a rotor head (by force I might add) I had spent several years flying tactical jets and I had a fairly good feel for how a jet can perform and I was a bit skeptical about the success of the operation I was about to view. Not to worry -- I had failed to take into proper account the fact that the transport now had no load at all and was very likely extremely low on fuel since its intended flight was just across the bay to Danang.

About half way down that short runway the pilot roarched back on the controls, the nose wheel popped into the air and by the time he reached the end of the runway I think he was over a thousand feet AGL and turning towards Danang to refuel and then haul some lucky souls home who had completed their tours.

Sometimes I wonder what ever happened to the pilot that made that landing and I also wonder if he was given a chance to redeem himself by making that spectacular takeoff.

AVweb responds...

Thanks for the war story, Owen.

--Mike Busch, Editor-in-Chief

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Eric Berggren

11 Jan 2000

Speyer/Ludwigshafen Airport

In regards to the following news story:

BIG BIRD SETTLES IN FOR RETIREMENT: An Antonov An-22 "Antei" set down for the last time at Austria's Speyer/Ludwigshafen airport recently, headed to a new home at the Technik-Museum Speyer, where it will become the largest airplane on exhibit in the region. Among the world records the aircraft claimed was hauling a payload of more than 221,440 pounds to an altitude of nearly 21,750 feet in 1967. Henceforth the Antei will still be earning its keep, but with a previously unutilized talent: It's available for rent as a ballroom.

I believe the Technik-Museum Speyer that is referred to is located in Germany, on Autobahn 8 near Stuttgart. They have a great 5-story metal slide -- the only way to get to it is to by climbing up to the top of the building, enter at the back of a German version of the Ford Tri-motor (mounted on the building), walk through the cabin to a door just behind the cockpit and exit to the landing for the slide. It's only two Deutsche Marks to slide as many time as you want. My 3-year-old son loves it!

Eric Berggren
Ramstein AFB, Germany

AVweb responds...

We only said that Speyer was in Austria in order to find out how many readers we have in Germany. Turns out we have a LOT!

--Mike Busch, Editor-in-Chief

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Paul T. Glessner

10 Jan 2000

The Plight of Flight Attendants

THE PLIGHT OF FLIGHT ATTENDANTS: Disgruntled F/As at Northwest Airlines have been handed a temporary restraining order forbidding them from engaging in actions that might harm the airline. The order follows allegedly illegal sickouts that Northwest claims forced it to cancel nearly 300 flights over the holidays. At US Airways, F/As are working under a contract that was meant to end in 1996 and have rejected their carrier's latest offers. And a reminder from last Monday's news: American Airlines F/As have recently rejected their carrier's most recent contract offer as well. Can't we all just get along?

I find the plight of flight attendants in "Can't we all get along..." very funny, but in a weird sense. I urge you to look at http://www.afausairways.org and view CEOs' pay and total compensations. It is a riot what the AFA is asking when their leaders get it all. Flight attendants did not even get overtime during the holidays -- e.g. Xmas, new years eve, and day. I have just spoken with a few to understand their safety concerns as I work at Boeing as an engineer. Can you understand why their morale is -1000' MSL? There is so much internal dissention it seems -- not a good safety mindset I feel.

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Dave Groth

10 Jan 2000

The Plight of Flight Attendants

You write about the plight of the flight attendants of a number of carriers, but omit American Trans Air's flight attendants. ATA's flight attendants have been in negotiations for over a year and although nothing important may have happened recently, I haven't seen any news bit on them yet. ATA, with over a billion in sales last year, should be considered a major airline and worthy of AVweb's news coverage.

The pilot group of ATA will soon undergo contract negotiations for their contract, which is amendable Sept. 23rd. Watch for some news in that arena!

AVweb responds...

We'll be on the lookout, Dave. Thanks!

--Mike Busch, Editor-in-Chief

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Steve Widmer

10 Jan 2000

Thanks, AVweb!

Just thought I'd take a moment to write a middle-of-a-sleepless-nite note to you all. I've been an AVweb member for several years now, and have been receiving your weekly (now twice/week) email newsletters probably since your inception. I wanted you to know how much I enjoy your articles and look forward to the aviation news updates. I find your journalism style to be very refreshing and interesting, if sometimes sarcastic and irreverent.

After 25 years of flying (and living) in Alaska, I recently moved from Fairbanks to Fairbanks ... to Fairbanks, Maine that is. During this transition, your weekly updates continue unabated -- and for that, both my C-180 and I are grateful. Keep up the good work.

AVweb responds...

Thanks, Steve. Notes like yours make all the work worthwhile.

--Mike Busch, Editor-in-Chief

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Steve Elson

10 Jan 2000

FAA Security SNAFU

Aren't you being unfair? Why, the FAA only had two damned years to prepare for the Y2K problem. That's a lot to expect of the FAA.

SNAFU -- if you decode the acronym -- very, very accurately describes FAA ACS (security). As a former agent who got fed up and just walked out, I can tell you that FAA security has no interest whatsoever in security, but every interest in feathering their own nest and playing games. Hundreds of millions of dollars have been wasted on worthless programs and technology. A new FAR 108 section is projected by the FAA to cost $2.8 billion over the next ten years, and will do absolutely nothing to enhance security. Everyone in the system, up to and including that do-nothing Slater at DOT, know the problem and don't care. Don't expect anything of substance from the FAA.

AVweb responds...

Don't hold back so, Steve. Seriously, thanks for your note.

--Mike Busch, Editor-in-Chief

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Siegfried Pfaffenberger

10 Jan 2000

Speyer/Ludwigshafen Airport

You wrote:

BIG BIRD SETTLES IN FOR RETIREMENT: An Antonov An-22 "Antei" set down for the last time at Austria's Speyer/Ludwigshafen airport recently......

When I was there two weeks ago, Speyer/Ludwigshafen airport was still in Germany (admittedly this was last century). But Austrians have so many great ballrooms, that they needn´t be worried.

 

Siegfried Pfaffenberger
Manager, Office of Airworthiness HAM TE/L
Lufthansa Technik http://www.lufthansa-technik.com
Hamburg, Germany

AVweb responds...

Siegfried, if it was in Germany when you visited two weeks ago, then I bet it's still in Germany. That'll teach us to fly with outdated charts!

Thanks for the heads-up ... and the chuckle.

--Mike Busch, Editor-in-Chief

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Brad Marzari

10 Jan 2000

Speyer/Ludwigshafen Airport

Let me assure you that the Speyer/Ludwigshafen airport is in Germany not in Austria. Located about half way between Frankfurt and Basal Switzerland on autobahn 61. The cool part is that the Technik-Museum Speyer is across the street from the Speyer general aviation airport which make for a great place to fly into eat a schnitzel, look at planes, and see an IMAX film. I can not confirm if the Antonov An-22 landed here at the Ludwigshafen airport.

Brad "LaunchPad" Marzari
Stuttgart, Germany

AVweb responds...

What a concept: flying to Speyer for a "$100 schnitzel." I love it!

(Numerous European readers gave us a heads-up about our error in placing Speyer in Austria rather than Germany.)

--Mike Busch, Editor-in-Chief

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Michael J. Boyd

9 Jan 2000

Washington ARTCC Outage

January 9, 2000

Rep. Ed Pease
Washington, DC Office:
119 Cannon House Office Building
Washington, DC 20515
(202) 225-5805

RE: ATC Outage 1/6/00, Washington

Dear Congressman Pease:

I noted in an AP story that you stated that this recent major outage of the ATC system underscored the need to give the FAA more money to modernize the ATC System.

Please forgive my bluntness, but I find it strange that Congress gets all upset and loudly demands action when an airline-related failure traps consumers on an airplane for hours. Yet when repeated ATC failures frequently transform entire regions of the nation into winged gulags of trapped passengers, the first thing you want to do is toss money at the FAA, instead of demanding accountability. Until this happens, no amount of funding will fix the ATC mess.

It wasn't a lack of funding that cancelled your flight, Congressman. It was a lack of competence at the FAA in how they spend money. Indeed, the equipment that failed in Washington was part of their "modernization" program. The same was true of the outage earlier this week which shut down flights in New England.

With all due respect, your solution only feeds the problem. I urge you and your colleagues to focus no longer on the symptom - which is the ATC system - but the problem, which is a continued and long term management failure of the FAA. Your response should have been one that expressed outrage and demanded answers from the FAA, which has spent over $27 billion in the last 18 years in failed modernization programs. You should have asked why their "modernized" equipment failed at two centers in the same week, and less than a year after hundreds of millions of tax dollars were spent in their installation.

You might also be interested to know, Congressman, that ATC equipment failures which resulted in delays or flight cancellations increased 34% in 1999. And this is with the replacement of all host computers at ATC centers. Clearly, FAA Administrator Garvey is not getting the job done, regardless of impassioned PR stunts that express the contrary.

It is time that Congress stopped taking the FAA's word about fixing the ATC system, and begin to give them the hard oversight that is now woefully missing. It is not funding, but how they spend that money.

Reversing the track record of fiscal irresponsibility and management failure at the FAA should be your first priority, not more funding that in the past has mostly allowed the FAA to buy the wrong things faster. Year after year, Congress has merely taken the word of the FAA management, and despite billions spent, we still have major failures like the one you encountered.

FAA failures in this area have resulted in thousands of travelers being put at risk. In some cases, they have lost their lives due to FAA mis-management of the ATC system, as was experienced in Guam in 1997.

Please, Congressman, let's stop acting as if the solution is simply money. It's time that you and the rest of Congress started to hold the FAA accountable, instead of treating them like co-victims.

Our firm has done extensive research on the ATC issue. It was a study published in cooperation with another firm (RMB Associates) that prompted the 1994 Congressional hearings that moved Free Flight to a top FAA priority. If we can provide you or your staff with additional information on this critical matter, please feel free to call me or Captain Michael Baiada who can also be reached at (303) 674-0229.

Sincerely

/signed/

Michael J. Boyd
President
The Boyd Group

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Leonard Mitchener

7 Jan 2000

The Air Traffic Control System of 2010

In the year 2010, the Air Traffic Control System will look somewhat like this...

  • It will be a system that all pay for the services requested. If you are in the airline business you pay for what you request. If you are General Aviation you also pay for what you request. (The military will be exempted for the services requested, for national security reasons.)
     
  • If you are in the airline business and you want multiple departures/arrivals at a given airport at a given time, then, you pay for that service and it will be provided. If the service can not be provided, for a legitimate reason, then you do not pay and you do not fly at that requested time.
     
  • The airline corporations will learn to live with this type of service. If they don't they will no longer be in the air transportation business.
     
  • The government as we know it today will not be the same as it will be in the year 2010 regarding aviation.
     
  • The providers of the Air Traffic Control System will be from the private sector, not the public (government) sector. Rules and standards will be set, by the government, but beyond that, the governmental role will be very little noticed by the flying public.
     
  • Everyone in the ATC system (providers, users) will be accountable for their part in the system.
     
  • We, the flying public, will learn to live with the time schedules for flying from our departure point to our destination point. Based on this acceptance by the flying public the airline industry will meet the public needs and will prosper.
     
  • The cost of this service will be very minimal, therefore all users of the system/service will be affordable to all who choose to use it.

It is the opinion of this writer, that Congress, the industry, the GA population, and the flying public, will see the need for change in the ATC system, and that they will have the foresight to see the requirement to pay for what you request and are provided.

The technology is out there, all we have to do is make use of it.

AVweb responds...

This could indeed come to pass, Leonard. If it does, access to ATC will become a function of one's ability to pay.

There's absolutely no reason to believe that "the cost of this service will be very minimal." Market forces would probably drive the cost of ATC services to a level that would dissuade piston-powered GA aircraft from using the system. (Those pesky flibs are a lot more trouble than they're worth, you know. The whole lot of them really ought to be grounded, but I suppose we'll tolerate them so long as they confine their activities to VFR scud running between non-towered airports and don't bother ATC.)

Fee-for-service ATC could easily prove to be the death knell of low-cost GA in this country. Look at Europe, Australia, or Mexico. (It's probably too soon to tell about Canada.)

--Mike Busch, Editor-in-Chief

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Bob Gatto

7 Jan 2000

Backup Altimeter Setting For IFR Approaches

Well check this out: The FAA has gone and changed something else without talking to and listening to the users and alphabet groups such as the AOPA, EAA, NATA or NBAA.

Instrument Approach Procedures (IAP) minimums are based on a reasonable altimeter setting. For many years the FAA has published minimums based on a "Local" altimeter setting and offered an alternative set of minimums if the local altimeter was not available. Provided of course, there was another source available in the area. This was a good plan and offered redundancy.

Some airports that have AWOS or ASOS and/or Part Time Control Towers are now predicating IAP minimums on that SOLE altimeter setting source, with no backup!

The problem with a single approved source to base minimums on, is if the AWOS/ASOS fails (power failure, transmitter failure, sensor failure), or the Tower closes and that destination altimeter setting is the only altimeter setting upon which the IAP is predicated, the ATC controller is directed to advise the pilot that the procedure(s) is "NOT AVAILABLE." See Air Traffic Bulletin No. 99-5, Fall 1999, "Approved Altimeter Setting for Instrument Approach".

What happened? Why the changes?

An example of this oversight (we hope) is in the Columbus (Ohio) area; Ohio State University Airport, (OSU), Bolton Field (TZR), Newark (VTA), Mt. Vernon/Knox County (4I3) and Lancaster (LHQ). All these GA airports provide relief for Port Columbus Int'l Airport (CMH), and at one time all these airports used other altimeters setting or the CMH altimeter setting as a backup...

This is an unacceptable situation and a safety concern as it immediately removes perfectly good airports with good IAP's from use due to some minor glitch. Causing unnecessary flights to alternate airports, wasting fuel, disrupting personal and business trips and needlessly burdens the ATC system.

It's so typical, just when one branch of the FAA starts doing some good out there by publishing lots of good IAP (i.e., GPS), increasing the utilization of non-air carrier airports, another branch throws us a curve that will send us back to those big overcrowded airports when it's IMC, slow down the big iron and creating more IFR delays for everyone!

Recommended Action: Publish alternative altimeter setting minimums for ALL IAPs that now rely on automated single source altimeter setting, i.e., AWOS/ASOS or part-time control tower. Good examples of what we need in IAP's is published for Mansfield, Ohio (MFD) and Marion, Indiana (MZZ).

Obviously, IFR airports without AWOS/ASOS, Control Tower or FSS are using someone's altimeter setting as are two IFR airports in the CMH area, they are Circleville (CYO, uses the LCK altimeter) and Delaware (DLZ, uses CMH altimeter).

AVweb responds...

Interesting observation, Bob. Now that you mention it, some of our AVweb staffers have noticed some of these alternate altimeter settings disappearing from east coast approach plates, too. We'll definitely look into it. Thanks for writing.

--Mike Busch, Editor-in-Chief

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Steve Reeve

7 Jan 2000

Dancing aboard South African Airlines

You folks should sponsor a dance troupe to perform aboard South African flights out of J'burgh. You could call it "AVflash Dance!"

Steve Reeves
Curriculum Manager
C-130 Aircraft Maintenance Training
Sheppard AFB

AVweb responds...

We'll be back to you on this shortly, Steve ... as soon as the groaning stops. <g>

--Mike Busch, Editor-in-Chief

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Manuel Erickson

6 Jan 2000

Carbon Monoxide Detector

I, too, purchased the AIM SAS-696D CO detector for my 1956 C-172. I installed it on the wall on the passenger's side.

As has David Cox [AVmail, 02 Jan 2000], I have also been using cabin heat regularly, now that it is winter. The readings I get range from about 10 to a high of about 75, which is getting close to the 100 threshold mentioned by Mr. Cox. In my case, there is an accompanying exhaust odor. Some of that could be from holes in the firewall where wires pass through into the cabin, as they do for the new EGT gauge. As we all know, CO itself is odorless, but it's probably mixed with the gasses coming inside. Knowing how dangerous CO and other gasses are, I've been flying with a wing vent open a little and the fresh air vent fully open, despite the cold. When I close the cabin heat control, the readings drop.

The muffler on my plane did have a crack which was repaired, but I am thinking of having the shop remove it for non-destructive testing (NDT). Perhaps I should have the mechanic remove the heat exchanger shroud from the muffler and pressurize the exhaust system to a few PSI with a vacuum cleaner (as you suggested to Mr. Cox), before sending out the muffler for NDT.

During the annual inspection in October two cylinders had to be removed for repair due to low compression readings. Before that was done, the AIM did not detect any CO in the cockpit. The first time I started up after the repair, the detector screamed.

I continue to be worried about this and would appreciate your comments.

AVweb responds...

Readings of 75 ppm are EXTREMELY worrisome, Manuel. I would probably recommend grounding the airplane until the source of the CO is found. If you must fly the airplane, restrict yourself to short flights at low altitudes, preferably with the heater off and the fresh air vents on (brrrr!).

Although it's possible for small amounts of CO to get into the cabin through holes in the firewall (all such holes should be sealed with high-temp sealant, by the way), your description makes it sound much more likely that the primary source is the cabin heating system. Remove the muffler shroud, pressurize the exhaust system with a vacuum cleaner or other low-pressure air source, and go over the muffler and exhaust system with soapy water. The muffler must be 100% free of any leaks whatsoever. On the remainder of the exhaust system, tiny slow leaks are acceptable at joints but more substantial leaks or leaks anywhere but at joints must be repaired.

It is possible that the exhaust system sustained some damage when the two cylinders were replaced. In any case, you need to find the leak and get it fixed before someone gets hurt.

--Mike Busch, Editor-in-Chief

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Daniel Case

06 Jan 2000

Bird In The Cockpit

In your article about the bird inside an Ansett 737 in Australia, the statement was made about it being the first time, not correct. I remember last spring a similar event at Dulles (IAD) west of Washington, D.C. My supervisor (at that time) was on her way to Paris on her second honeymoon and was delayed a couple of hours while the ground crew rounded up the winged stow-away. I am currently attempting to contact her and verify the date that happened, I'm sure that is a date she won't forget for a long while.

Although it is the first time I've heard of a bird actually striking one of the crew, they make a "boarding dive" quite often after the food service trucks pull away. Maybe it's that airline food?

AVweb responds...

Daniel, see the following note from Captain Bob Tinsley. And tell me that it isn't a small world.

--Mike Busch, Editor-in-Chief

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Bob Tinsley

06 Jan 2000

Bird In The Cockpit

Re your story about the bird in the cockpit of the Ansett 737:

On my retirement flight from CDG (Paris) to IAD (Washington DC) as captain of a UAL 767, a small bird showed up in the cockpit and began to flit about. Over the crew's objections, I decreed that we capture it, and report the incident to the company. This generated some hilarious radio traffic along the lines of "He'd better chirp pretty, because the Ag department wants to talk to him."

Upon arrival, a passenger agent accompanied me and the bee-one-are-dee to the Dept. of Agriculture office. I told the ag-man that the little guy had brought me luck on my retirement trip, and not to kill it.

"What do you expect me to do? I can't turn it loose or keep it for a pet."

The passenger agent intervened. "We have a flight leaving for Paris in a few hours."

The Ag-man rolled his eyes, but said he would see what he could do.

Yep, the airline flew the little bird back to CDG, where he flew away under his own power, perhaps to tell his buddies about his adventures.

AVweb responds...

Marvelous story, Bob. Thanks for sharing it!

--Mike Busch, Editor-in-Chief

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Morrie Caudill

6 Jan 2000

Carbon Monoxide Detector

My experience in my Cessna 150 and a friend's Cessna 180 is this. Flying without any cabin ventilation (heat or fresh air) causes negative pressure in the cabin due to leaks around the doors. Riding in the back seat of the C180 without the heat on results in a large movement of air from the tail cone to the cabin blowing on the back of your legs. When the heat is turned on it stops, or nearly so.

In the C150 the doors must leak more, I can tell by the wind noise, and even with the heat on all the way there is a breeze blowing on the back of my legs. The CO is being pulled into the rear fuselage and forward to the cabin by the negative pressure in the cabin. That may be why the level is higher at the floor. You've previously mentioned a problem in a larger aircraft that was caused by the air conditioner inlet at the rear of the fuselage ingesting CO.

AVweb responds...

The primary cause of high CO concentrations in the cockpit of Cessnas is exhaust leaks. The primary cause of low (but worrisome) CO concentrations seems to be improper sealing of the doors, tailcone, and (on retractables) wheel wells. Using a sensitive, fast-acting digital-readout CO detector (like the AIM SAS-696D that I recommended [http://www.AVweb.com/articles/codetect.html]), it's often possible to locate the problem by moving the detector around the cabin and finding where the CO concentration is highest.

--Mike Busch, Editor-in-Chief

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Gerald Gay

6 Jan 2000

Friends Don't Let Friends Fly Drunk

I would like to pass on this story that occurred in South Louisiana some 25 or 30 years ago. The FAA was holding safety seminars in the Texas and Louisiana area for local pilots and was using an actual audio tape recorded by a FSS in the East Texas or South Louisiana area. The tape was one of the most chilling things I have ever heard or seen in my 42 years of flying.

It seems that a pilot flying a Cessna 140 took off at night immediately after consuming a large amount of alcohol. He called the FSS right after take-off for help because he was disoriented but was not obviously under the influence. As the FSS people tried to talk him back to the airport the pilot was rapidly becoming more and more inebriated as the alcohol was being absorbed into his system and the effect was starting to become obvious to the folks on the ground.

After unsuccessfully working with him for about an hour the flight ended tragically with the poor drunk pilot literally begging and screaming for help but unable to help himself on that very dark night.

After all these years I still wonder if he had friends who could have prevented him from getting into that airplane. If an acquaintance of mine were trying to drive or fly drunk I would sit on him if necessary; never would I fear being arrested for interfering with an aircraft. Folks, it just will not happen that way. However, one could call 911 for assistance. Better to have him arrested than dead.

In the words of Dennis Miller, that is just my opinion, I could be wrong!!!

Gerald Gay
New Orleans Lakefront Airport

AVweb responds...

Thanks for sharing that, Gerald. Clearly, the proper role of a friend in such a situation is a far more complex and controversial subject than we thought when we first ran the story. Might even make for an interesting Question Of The Week.

--Mike Busch, Editor-in-Chief

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Liz Holland

5 Jan 2000

Another Y2K Flight

This is a true story (I even have it on tape) that I thought AVweb readers might enjoy.

Months before New Year's Eve, I'd decided I was going to be in the air to bring it in. I figured I'd see either a lot of fireworks, or everything go dark.

I started practicing my night landings, using Alliance (AFW) as my practice field. Alliance is a big, non-passenger operation with an American Airlines maintenance facility. On one of my first night flights, I was cleared to land "number two behind the American 767. Caution wake turbulence." (No kidding!) As I repeated the clearance, I did the chain of events in my head. Dark. Wake turbulence. No visual glide slope. No way to stay above and beyond the 767 flight path. I keyed the mike again and said, "If it's all the same to you guys, I'll head on back to Northwest regional." The point of the drill was to build confidence, not fly upside down. Or land upside down. I came back other nights, and got so I could enjoy the pretty Christmas lights as I became more and more convinced it was possible to land in the dark.

The reports of the cancelled airline flights added a new possibility: What if nobody was using DFW that night? Would they let my little Cessna 150 land there? What could it hurt to ask?

A friend gave me an airport diagram, so I had all the runways and taxiways to refer to -- just in case. I had all the approach and tower frequencies written on my kneeboard, in BIG numbers so I could see them, and I stocked up on red lens flashlights. I was all set. Now if only the weather and ATC would cooperate.

Don Peterson is my primary flight instructor, and has been a friend ever since. I invited him along to share the fun. We enjoyed a nice dinner, then watched the TV coverage. As soon as the ball dropped in Times Square (one hour before midnight Central time), we headed to the airport. On the way out the door, Don said, "Which one of us is night current?" I laughed and replied, "I am. Really current." The preflight was brief since I had flown earlier in the day, and refueled afterwards. We were in the air in short order. It was amazing to see nothing in the Dallas airspace but stars.

My airplane is a 'classic' 1961 straight tail Cessna 150. The avionics consist of a handheld radio wired to an external antenna, and a Mode C transponder. One of the best parts about listening to the ATC tape later was hearing how good my radio and I sound!

Me: "Dallas approach, Cessna 7206X is a 150 out of Northwest regional at two thousand five hundred, going to watch the fireworks."

App: "Where are there any fireworks?"

Me: "There's some in Fort Worth, and some in Dallas. I'd like to see the ones in Dallas."

App: "Squawk 4765"

App: "7206X radar contact 4 miles east of Alliance. Cleared into Class B airspace."

Me: "Approach, I was wondering if me and my 150 could do a touch and go on one of your fine runways."

(Pause.)

App: "Uhhhhh. I don't... There might be landing fees, but you should be... Fly a heading of zero nine zero and let me go ask some questions. Expect one eight right."

(Don and I are giggling in the cockpit, pumping fists and saying, "Yes! Yes!")

App: "Continue your approach and contact tower on 124.15."

Me: "Contact tower 124.15 and thanks very much."

(Switching frequencies...)

Me: "Dallas tower, Cessna 7206X with you at 2500 feet."

Twr: "Dallas altimeter is 30.04. Do you have DFW in sight?"

(...which is kind of like asking if you have Planet Earth in sight...)

Me: "Altimeter 30.04 and I have DFW in sight"

Twr: "7206X, cleared touch and go runway 18 right. What are your intentions after landing?"

(Don put me up to this next part.)

Me: "Well, I need to work on my night currency. How about right closed traffic?"

Twr: "NEGATIVE. We're not able to do that tonight."

(...or any other night, he's probably thinking...)

Me: "Okay, we'd like to fly east to White Rock lake and then back to Northwest regional."

Now the practicing at Alliance paid off. If I hadn't gotten used to lots of lights at a big airport, I would have been really confused. As it was, I had no problem finding the runway -- the correct runway -- and the two light PAPI. The wind was 190 at 6; visibility unlimited and crystal clear. As I wafted in at my usual 65 miles an hour on short final, I had all the time in the world to savor this landing. Don's an instructor, so he said "add power." I was the pilot who was night current, so I didn't. We waited a beat, then he said, "this looks like it's going to work out." It did. Not a greaser, but the nose wheel thumped over those big centerline lights as I pushed in carb heat and raised the manual flaps, then added full throttle and took off from Dallas Fort Worth International Airport. Laughing out loud from the sheer fun of it; the luck of everything working out.

Tower was talking to a helicopter that had popped up. He called "traffic off the departure end of 18 is a 150 doing a touch and go." The helo pilot came back with "That's kind of unusual..." Tower: "I just thought I'd let you know about it." Eventually, I climbed to 2500 and tower turned me over to the Love field controller to go orbit downtown. I was one of a dozen planes Love tower was handling, and the guy was a real pro, having fun with this once-in-a-lifetime evening. He counted down the last ten seconds, and right on cue the fireworks blossomed over downtown Dallas. All of us on the frequency wished a happy New Year to each other, and thanked the controller. It was a great party.

And I logged it!

AVweb responds...

Thanks for the wonderful story, Liz. Sure wish I'd been along. (Unfortunately, I greeted the new year in couch-potato mode watching DirecTV. <sigh>)

--Mike Busch, Editor-in-Chief

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Robert Abbott

5 Jan 2000

PASS Greets New Year On Soapbox

Your article states that PASS "...could have been in a position to spot the problem a long time ago." I submit that PASS has been a champion of and providing vital information on the public's safety for a long time.

Also, this is not about PASS' contract negotiations with the FAA, it's about FLIGHT SAFETY!

Robert Abbott
PASS Member

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Doug Sink

05 Jan 2000

FAA-Approved Pain Relievers

Can you tell me what pain relievers the FAA approves for pilots while flying?

AVweb responds...

Doug, the FAA does not have a true list of "approved" medications. Generally, any sedating or narcotic meds are taboo. Aspirin, acetaminophen, ibuprofen, and other non-steroidal anti-inflammatories (NSAIDs) are okay.

--Brent Blue M.D., Senior AME, Aviation Medicine Editor

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George Horn

05 Jan 2000

Y2K Double Standard?

Let me see now, didn't the FAA recently threaten to fine those airlines who hadn't yet made Y2K compliance statements?

Yet according to your recent story, the FAA themselves, despite their own claims of compliance, were found to be in non-compliance, right? So, did they also fine themselves? I'm really surprised if they failed to threaten themselves along with the others, as that would have been a missed opportunity to throw even more taxpayer dollars around, which in turn would have made them even prouder still, at the amount of "money well spent."

AVweb responds...

Actually, George, it was not the FAA who threatened to fine the airlines. It was U.S. Senator Christopher Dodd (D-CT) who got his 15 minutes of fame in 1999 by browbeating domestic air carriers into taking the time to fill out and return to the FAA a Y2K-bug preparedness survey that the FAA originally designed as voluntary. He even went so far as to publish the names of non-respondent carriers in the Congressional Record.

To their credit, virtually all of the FAA folks we talked to considered this to be a terrible idea. We agree. Senator Dodd thereby captured AVweb's coveted "Worst Performances By Public Officials Award." You can read full details of this and our other awards in AVweb's 1999 Year-End Wrap-Up.

--Mike Busch, Editor-in-Chief

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Evan Roberts

04 Jan 2000

Mismarked Aircraft Parts

Owners and repair shops, be aware: Just because the aircraft parts you ordered from a known source come packed in the original manufacturers box and the label on the box matches your order does not mean you have received what you paid for.

I ordered a set of Lord motor mounts for my Beechcraft B-24R Sierra from Aircraft Spruce and presented them to my local FBO for installation on my airplane in concert with other work that was to be done on the airplane. The Sierra uses two Lord J-10778-14 mounts and two J-10778-16 mounts. The mount kits are identical except for the spacer.

The local shop checked the part numbers on the box and installed the contents of the boxes in the location shown on the Beech drawings for the airplane. The mechanic said that he noted that the mounts that he removed were different than the new mounts and that he had gone back and checked the part number on the box again to be sure that the proper part was being installed.

Well folks, it didn't work. The little Sierra shook like a wet dog on start up and shutdown. Something was not right. I took it back to the shop and they said that nothing was wrong with their work. I called Beech and they explained the spacer difference. I then went back to the shop and paid them to lift the engine and move it far enough to verify the actual mounts installed. They called me with the sad news. Yes, all four of the mounts they had installed were actually J-10778-16 kits. The original boxes were consulted and two were marked 14 and two were marked 16.

I called Aircraft Spruce and purchased two J-10778-14 mount kits and they had them drop shipped directly from Aviall. Lord would not issue credit on the new mounts without having the mislabeled 16 mounts in hand. I finally did get credit on the two mounts from Spruce. I hope they got credit from Lord. I claimed reimbursement for the four hours shop time required to remove and exchange the mounts. Aircraft Spruce advises me that Lord will not honor this request. The shop here will not participate in their having installed the wrong parts and guess who ends up eating about $200.00 worth of labor.

Evan A. Roberts
Horseshoe Bay, Texas

AVweb responds...

Thanks for the word of caution, Evan.

--Mike Busch, Editor-in-Chief

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Name Withheld

4 Jan 2000

Friends Don't Let Friends Fly Drunk

RE: Your article regarding the enibriated (sic) pilot.

Have you ever tried to take the keys away from a drunk? My wife tried recently to do that for a female friend and co-worker. The scene was brutal and, thanks to the interference of a security guard at the high rise, the drunk managed to get the keys back and depart.

Personally, if I couldn't verbally dissuade the person, I would not attempt in the least to interfere. I have known too many drunks that carried weapons and in their fogged state would kill their best friend for interfering. I know, if they go out on the road they can create some real carnage.

The problem is that our laws don't protect the person that tries to run interference. You can be charged with theft for taking their keys even if you don't move the car. Until the laws are made to reflect those now on the books for "good Samaritans" who stop to render aid, we will not be able to put the stops on this type of drunken behavior. And even then, I am not sure it will work due to the belligerent nature of some drunks.

Things like disabling their car will work, but you have to have someone to distract them. When it is a one-on-one situation (as in my wife's case), it is not possible to divert their attention while someone disables the car. Plus, I have seen drunks drive off with all four tires flat after running through a tire slasher, so what are you gonna do? A lot of people don't know how to disable newer cars with all the electronic ignition stuff, and some of them are darn difficult to do. You can't just pull the wire to the coil and many of the spark plug wires are next to impossible to reach anymore.

With airplanes, you run afoul of federal laws regarding interfering with aircraft.

Please don't use my name.

AVweb responds...

Thanks for your interesting perspective on this. Definitely food for thought.

--Mike Busch, Editor-in-Chief

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Brian Bragg

4 Jan 2000

Ly Tong's Flight Over Cuba

Okay, I gave you guys more than 24 hours to fix your report on the stupid, self-aggrandizing, hurtful-to-general-aviation, threatening-to-society stunt pulled by the self-promoting mercenary Ly Tong last weekend. This idiot, financed and encouraged by feckless extremist Cuban expatriates in South Florida, deliberately jeopardized hundreds (thousands?) of lives in a useless act of utter stupidity.

And the normally sane AVweb newswire calls it "best flying stunt" of the new year?

Tell you what: Under my government, this two-bit clown would be slapped into solitary confinement on bread and water for about five years!

Please repair your account of this fool's outrageous act.

If you want to hand out a "best" something, give the Cuban Air Force a nod for "best show of restraint" so far this new year.

AVweb responds...

Lighten up, Brian! We called Ly Tong's whacko Cuban overflight "The Best Flying Stunt Of The Year -- So Far" because it was the first flying stunt of the year (or at least the first that came to our attention). We further hoped that our aviation-savvy audience would interpret our use of the word "stunt" in the pejorative spirit we intended. Most did.

--Mike Busch, Editor-in-Chief

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Larry Hendren

3 Jan 2000

Y10K?

I always enjoy reading AVweb, don't know what I would do without it. Just have a question regarding all the Y2K "problems."

Do we dare ask what is going to happen at Y10K when we (or should I say they) have to add another digit? Wonder how much that will cost? Any odds on the FAA having the same computers then?

AVweb responds...

Any odds on the FAA being in existence then?

--Mike Busch, Editor-in-Chief

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Stefan Czereyski

3 Jan 2000

Another Y2K Flight

Like Jane Garvey I did my own Y2K flight. It was over Phoenix at 7,500 MSL between 11:30 pm 1999 and 12:30 am 2000. Here's a brief report:

  • According to TV,  Sky Harbor International was empty with virtually all gates and counters empty. The newscaster was still speculating at 11:50 that planes might fall out of the sky.
     
  • The sky was empty -- there were only two planes up at altitude over Phoenix -- myself and a Delta flight.
     
  • There were only two other GA aircraft at low altitudes along the edges of the Phoenix class B plus a few news choppers.
     
  • The city did not go black.
     
  • My 76 Mooney M20F didn't fall out of the sky nor did the Delta flight.
     
  • My GPS though did turn itself off by a curious coincidence at midnight but was okay when turned back on.
     
  • I had a great view of all the fireworks.
     
  • I took off in one millennium and landed in another

Stefan Czereyski
Phoenix, Arizona

AVweb responds...

Phoenix Sky Harbor empty? Now that's something I'd have loved to see!

--Mike Busch, Editor-in-Chief

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Bill McMahon

3 Jan 2000

"Those That Have..."

Reading the article on the Comanche pilot who landed gear-up reminded me of a conversation I had when I first got my ticket. You refer (tongue-in-cheek, of course) to "those that have, and those that will." Well, back in 1975 I was a newly minted private pilot who devoured all of the popular aviation magazines cover to cover. This particular day I was recounting to a fellow pilot the most recent safety tips column, which detailed a gear-up incident, and being young, stupid and naive, I finished my retelling with a knowing wink and the advice that "after all, there are those that have, and those that will", echoing what I had read in the magazine.

My audience that day was a recently promoted captain for a major air carrier, a former Air Force fighter pilot who had more type ratings on his ticket than space permitted, who was in the process of checking me out in a J-3 Cub. He listened quietly to my comments, then gave me a serious dressing down. He was furious that I would pay lip service to such nonsense as the inevitability of a gear-up landing, and felt that sayings like "Those who have..." were insulting to every competent pilot in the sky. In no uncertain terms he told me that proficient flying starts with the proper attitude, and the right attitude would NEVER permit a gear-up landing (I assume he wasn't including legitimate mechanical problems, but at that point I wasn't questioning anything). He thought the saying should be changed to "Those Who Have, and should never fly again, and Those Who Won't, because they are good pilots."

Needless to say over the years I've avoided that particular aviation saying like the plague, so I got a chuckle when I read your lead-in. The advice from that crusty old IP still holds though. By the way, another time I'll share with you the experience of getting checked out in a Cub by a former fighter jock -- it brought new meaning to the notion of "zero tolerance."

AVweb responds...

Points well taken, Bill. I've never subscribed to the "those that will" philosophy that all pilots are somehow destined to forget the "U" in "GUMP" if they fly long enough. As you surmised, our newswriter was just having some fun with the story, and did not intend that too much be read into that particular turn of phrase.

--Mike Busch, Editor-in-Chief

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John Lawson

03 Jan 2000

Friends Don't Let Friends Fly Drunk

Just a quick comment about Mr. Alvarez' "rant" [AVmail, 30 Dec 1999] on the story about the drunk CFI. Mr. Alvarez said, "By your thinking, do they have to beat him unconscious? Maybe hold him against his will? Maybe steal or incapacitate the aircraft?"

Ok, buddy, let's run the following scenario: The CFI's friends are indeed unsuccessful at keeping the inebriated pilot on the ground. He takes off, runs it out of fuel or becomes disoriented, and tries to land the airplane on a highway ... and slams into a vehicle.

One or more members of YOUR family are in the vehicle.

Want to think about your statement again, Mr. Alvarez?

By the way, your diatribe about AVweb was way off the mark. And your comments about Mr. Kaputa's name were particularly offensive.

Semper Fi,
John Lawson

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David Cox

02 Jan 2000

Carbon Monoxide Detector

Some while ago you published a very informative article on the subject of carbon monoxide detection and recommended the AIM CO detector. I purchased one for my Cessna 182 and another for my Dad's Baron.

With the advent of cold weather here in Toronto, I have been using cabin heat more regularly. A couple of weeks ago, I started getting readings on the AIM detector (which sits on the floor just in front of the fuel selector in my 182) of between 10 and 20 ppm. When I bring the detector up onto the seat beside me, the readings drop off to zero again. The operating information included with the unit refer to readings over 100 as being significant. I get no accompanying exhaust smell at all.

These readings seem small (low) but any reading at all perhaps should be cause for some concern. I am contemplating having my shop remove and test the shroud from my cabin heater assembly to test for potential leaks ... but before taking that drastic step I thought I'd ask your opinion. Do you get low readings like this on the AIM device in your 310? Do other of your readers have any experience with the AIM detector that would mirror mine?

My annual is done each year in early March .. I would prefer to wait till then to do any major diagnosis work if I can .. however, as you point out in your article, any CO issues are not to be taken lightly!!

If you could give me your thoughts or any other source for information on this issue, I'd appreciate your help.

I am an avid reader of AVweb and have found many useful items and thought provoking and educational articles therein. Thank you for a great service.

AVweb responds...

Dave, while readings of 10 or 20 ppm of CO probably don't justify grounding the airplane, they should be cause for concern. I say this for two reasons:

First, if the CO contamination is being caused by a tiny leak in your cabin heat exchanger (which seems likely if the readings correlate with the use of cabin heat), it is highly probable that this leak will get worse (exhaust leaks virtually always do).

Second, there are (remarkably) no established limits for the maximum CO concentration considered "safe" in an aircraft cabin or cockpit. (There should be, but it appears that the FAA has never addressed the issue.) OSHA and other safety agencies have established maximum safe limits of 35 to 50 ppm of CO in the workplace environment. However, the maximum safe limit in an airplane cockpit should clearly be lower than this, because:

(a) the OSHA limits are based on a sea level environment, but the effects of altitude hypoxia and CO poisoning are additive; and

(b) the OSHA limits are intended to protect from physiological damage, but as pilots we're concerned about cognitive impairment which undoubtedly begins at far lower concentrations.

Would I fly an airplane with a 20 ppm CO concentration? Yes, but probably not for more than an hour at a stretch.

My suggestion is that you re-verify that the CO readings are related to the use of cabin heat -- i.e., shut off the cabin heat in-flight and see if the reading drops to zero. Assuming it does, have your mechanic remove the heat exchanger shroud from your muffler, pressurize your exhaust system to a few PSI with a vacuum cleaner or other low-pressure air source, and go over every inch of the muffler with soapy water solution looking for a pinhole leak.

If you put this off until your annual in March, here's another tip: if you lean the engine aggressively in cruise (preferably to peak EGT), you should see the CO readings drop fairly sharply -- perhaps even to sub-detectable in your case. Remember that CO is produced by incomplete combustion of hydrocarbons, the usual cause of which is a richer-than-stoichiometric mixture.

Hope this helps.

--Mike Busch, Editor-in-Chief

EDITOR'S NOTE: Dave Cox wrote back a few days later to say that he had his mechanic inspect the muffler and a small exhaust leak was indeed located. Dave went on to say that the leak would almost certainly have not been detected until it became much, much worse had he not been using a sensitive digital-readout CO detector in the cockpit.

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Addie Busch

1 Jan 2000

Comments on Past AVmail

Dear Best of the Best Editors-in-Chief:

You know I wouldn't miss one golden word of AVmail, both the mail from your devoted readers and the answers thereto. But I am moved to take up my trusty pen ... er ... keyboard - to communicate the following:

1. Having just made reservations to fly from Boston to LAX on AA and then (shudder) from LAX to San Luis on America West, I fully sympathize and agree with Captain R. Michael Baiada's assessment that flying somehow isn't what it used to be. Instead of getting better, it seems to be getting more frightening, more uncomfortable and more undependable by the minute. (If I were a year younger than my present age of 78, I'd consider walking...) Your response to Captain Baiada's documentation was just a wee bit off the mark. The envelope, which you misread slightly, contained the winner of the Drama Critics John Wayne Award, and the winner was....Ronald Reagan, who fired all the PATCO Air Traffic Controllers, thus making his thoughtless but dramatic statement and ensuring that the airways would be less safe for everyone in the U.S. whose lives are in the hands of overworked, understaffed and often under-trained ATCs. In my opinion, Captain Baiada's letter deserved more serious consideration than it was given.

2. Darryl Phillips' December 20th letter noting AVweb's anti-liberal bias seemed an eminently fair observation. Naturally, you didn't recognize yourself in the mirror he held up. (Does Tom DeLay think he's so far right that he's practically falling off the platform? No, he considers himself the voice of sweet reason..) Those of us who may be rash enough to share Darryl Phillips' point of view understand that people who are able to afford to be general aviation enthusiasts must be among the fortunate citizens with at least SOME, if not loads of, spare cash. They aren't liberals. They don't need to be. They're doing okay and their only gripe is with a government that taxes them so that some of that spare cash can be used for more urgent priorities, like feeding the poor, upgrading public schools, sheltering the homeless, etc. If you've never been poor or hungry, it's easy to turn away and say those people in need are simply lazy and shiftless. But having been poor and hungry once myself, (although, thank God, never homeless) I can tell you that it is not always for lack of trying that one can be in dire straits. Yes, there are times when I do want more government interference, and you ought to try to get at least ONE person on your staff that can understand that point of view before you proclaim yourselves free of anti-liberal bias.

3. When Brent Blue and Tom Teller write to one another, are you sure they're not using stage names??? They sound stagier than George Brent and Tom Cruise to me.

AVweb responds...

Happy New Year to you, too, Mom!

(Note to other readers: If you were expecting me to post a snappy rejoinder, guess again ... I may be dumb, but I'm not stupid! My dad has tried to convince his wife of the errors of her flaming-liberal political views for 60 years, obviously without the slightest success. Besides, my mom taught me long ago never to pick fights I couldn't possibly win. Smart lady. I'd rather take on 800 Independence Avenue any day.)

--Mike Busch, Editor-in-Chief

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David B. Mullens, Jr.

1 Jan 2000

Y2K Follies

Let me be one of the first this year to congratulate you and your staff on an extraordinary publication. It is timely, insightful, and just plain fun!

Now try to be gentle in your reporting of the Y2K non-event. Could be that all the hype (and millions spent) vis-a-vis prevention actually made it so. Of course I can afford to be nonchalant--I'm sending this on a Macintosh!

Best wishes this millennium (regardless of when it actually starts).

AVweb responds...

Yes indeed, David, it's very likely that the hoopla and paranoia about Y2K contributed to aviation's (and indeed the world's) readiness to cope with the rollover. In my judgment, an order of magnitude less hoopla and paranoia would have sufficed to get the job done, but that's a mighty difficult case to prove in court.

Thanks for the kind words, and happy Y2K to you and yours.

--Mike Busch, Editor-in-Chief

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John Wharton

1 Jan 2000

Y2K Follies

The Auckland (N.Z.) International Airport has a web site to keep the public informed on Y2K issues. This morning they issued a "News Flash" stating that "the airport is operating as normal. No Y2K problems have been experienced and all operations are continuing as usual."

The News Flash is timestamped "02:58 1 Jan 100.".

AVweb responds...

John, congratulations on being the first AVmail contributor of the year.

Lots of little cosmetic glitches showed up after the Y2K witching hour. One of the best publicized was when the Web site of the U.S. Naval Observatory, the nation's official timekeeper, briefly reported the date as January 1, 19100. (Programmers corrected the glitch at 2:10 am.) More such cosmetic problems are likely to be uncovered in the days ahead, and quickly fixed. No harm, no foul.

It's fine to chuckle about this stuff, but the important thing is that none of the really serious problems forecast by the Y2K gloom-and-doomers occurred. ATC kept functioning, airliners kept navigating, power didn't fail, computers didn't crash, and the Internet kept netting ... just as we knew it would.

Now that all this Y2K hysteria is over, maybe we can get back to Job One -- making The System work better.

--Mike Busch, Editor-in-Chief

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