March 3, 1998 Pelican's Perch #1: Throw Away That Stupid Checklist! |
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Say again? You heard correct, just toss it.
March 3, 1998
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| About the Author ... |
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John Deakin is a 35,000-hour pilot who worked his way up the aviation food chain
via charter, corporate, and cargo flying; spent five years in Southeast Asia
with Air America; 33 years with Japan Airlines, mostly as a 747 captain; and
now flies the Gulfstream IV for a West Coast operator.
He also flies his own
V35 Bonanza (N1BE) and is very active in the warbird and vintage aircraft
scene, flying the C-46, M-404, DC-3, F8F Bearcat, Constellation, B-29, and
others. He is also a National Designated Pilot Examiner (NDPER), able to give
type ratings and check rides on 43 different aircraft types.
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First, welcome to this,
my first column for AVweb. I'm free to say what I want, without fear of censorship
and only enough editing to keep me from embarrassing myself with major errors in spelling
or grammar. That's nice, but it does mean I can't blame my editor for content, and all
remaining mistakes are mine alone. Hmm, maybe I should re-think this...
Why "Pelican's Perch"? Well, I like the old Pelican, and resemble it in some
ways. I'm not very graceful on the ground, I'm always looking for my next meal, and I've
long aspired to its grace in the air.
Now, about that checklist. Sorry folks, but I've never been able
to see the need for using a written checklist in a single pilot airplane. On the other
hand, this doesn't mean I jump in and go without an organized method, either!
"Heresy!" some will cry. Yes, I know, the airline regulations do require
them. But, have you noticed that a lot of folks will say they use checklists, or will tell
you that you should...and don't? Ever seen a CFI preach the use of one to his students,
then go fly a charter without doing so? Or hear the advice, "Forget 'em, unless
you're getting a checkride"? Ever wonder how they (er, we) do it, safely and
successfully?
I don't use written checklists, and I suggest there's a better way, one I have used in
solo operations in everything from the proverbial Cub to the North American B-25 with a
high degree of success. To date I have no regrets and I cannot recall a single case where
it got me in trouble. On the other hand, I can recall with shame almost forgetting to do
the "before takeoff" checklist in a 727 one frosty morning in Chitose, Japan,
and nearly forgetting to do the landing check about 3 AM one morning in San Francisco at
the end of a long night flight from Japan, thereby very nearly becoming the first man in
history to belly-in a 747. A written checklist is no good at all if you don't use it, and
you are just as likely to forget a written one as you are a mental one. If you can
remember to perform a written checklist, you should be able to remember to perform a
mental one, with only the basics.
My "system" employs a "flow pattern" that is logical and orderly
and covers every switch, control, and instrument in the cockpit. In my Bonanza, it starts
at the fuel valve under my left leg, continues across the bottom of the panel from left to
right, up to the door handle, the radio master, left across the engine instruments, and
finishes up at the flight instruments, checking each and every switch, instrument, and
control for proper position for takeoff (or engine start), or for proper indication.
Nearly everything has a story to tell. For example, you might skip the manifold pressure
gauge, but that would be a mistake, because it should show ambient pressure which should
correlate very closely with field elevation, corrected for the altimeter setting. This is
an excellent check of the accuracy of the instrument.
If this concept is new to you, the first time through the flow pattern will take an
hour or more in a complex single, because you will need and want to think it through very
carefully, considering just what you're looking at and what it should show. This is also
an excellent learning exercise in any airplane. In an airplane that is new to you, similar
care will be needed to establish an efficient, thorough flow pattern for that airplane.
I use this flow pattern religiously before start to set the cockpit up for takeoff,
frequently during flight (how frequently depends on the airplane), again on the descent,
and finally, after landing (for the next takeoff). The flow pattern before engine start is
the most thorough, covering everything in the cockpit. That will also work for subsequent
operations, but whole areas may be skipped. For example, on the "flow pattern" I
perform just before takeoff, I know it is sufficient to make one "pass" across
the lower panel, the same as I did on the pre-start, end up at the door handle, and done.
I think of that as a subset of the pre-start flow pattern.
As a final check just before takeoff I use the archaic "CIGFTPR," and just
before landing, the classic "GUMP." I know, they don't make sense, the first
doesn't even make a word, and I admit both have unnecessary items in them, but having used
them for nearly fifty years, I'd rather not change now. They are old friends, and I am
comfortable with them. Please make your own, ones that are comfortable for you. Make them
as universal as possible, you may fly something else someday.
A key point here. The CIGFTPR/GUMP checklists are true "check" lists, not
"do" lists. For example, the "C" is obviously for
"Controls." This is not the time to check them, the flight controls
should have been checked for "Free, full travel, and correct" on the original
cockpit setup, or during the taxi to the runway. As you do this final check your
"response" should be, "Yes, I did do the full control check already,"
and it is not necessary to check them again. If you come to this point and realize,
"Ohmigosh, I forgot!", then you need to stop everything, think why you
forgot, what interrupted you, why are the controls unchecked at this point, when
they should have been. You should consider yourself as having made a major mistake
somewhere along the line, and you must reprimand yourself in a constructive fashion, so
that you do not make that mistake again. This self-critique is a key element in all of
flying (if not in life itself!). At this point, having failed to perform the flow pattern
properly, it is not sufficient to just check the controls, and keep on going.
We do something very similar in the 747, adding only a very short written checklist
that assures each crew member that all the others have done their jobs, as well. Boeing
popularized this method (over a lot of shrill screams of protest!) with the introduction
of the 747 in the early seventies, and it works very well indeed. Once pilots become
accustomed to it, I've never known one who wanted to go back.
What about that time when you will forget the checklist, whether you use a written one,
or a mental one? Woe unto the pilot who says, "I'd never do that," for he will
one day learn a hard lesson. Much better to admit right up front, "Yes, I could do
that, how can I avoid it, or better yet, how can I minimize the harm, when I do?"
Plan for the mistakes, because you will make them.
One handy trick is to set up your cockpit after landing, for the next takeoff, to the
maximum extent possible, using the flow pattern. Yes, I do understand you may not be the
next person to fly the airplane, but by doing this you may save someone else, or the
airplane, or yourself.
After engine start, lean your mixture as much as possible. Go ahead, pull that red knob
out aggressively, it is absolutely impossible to damage your engine at any power setting
below runup power, on the ground. If you lean it until the engine runs rough, then enrich
it barely enough to make the engine smooth (and I do mean barely, no extra fuel, at all),
it is then impossible to get enough power to take off, and the wheeze you'll get at
initial power application is an excellent reminder that you may have left some things
undone. Operating "super lean" on the ground will be kind to your engine, too,
keeping valves and plugs clean, and keeping your engine cooler. Yes, I said cooler. You
might consider the act of going full rich for takeoff a reminder to yourself to make sure
you have done your usual routine, whatever it may be.
On landing, I leave my mixture fully leaned for cruise, or for maximum EGT to keep
engine temperatures up during low power operations, and I set my prop at a very low RPM
(1800 RPM) for noise abatement. Those of you who run your prop up to a high RPM are not
making friends for General Aviation around your local airport. Along with these two
things, you must teach yourself that any need for high power will require mixture, prop
and throttle together, which is not a bad habit, in any case. On initial takeoff roll, any
missed approach, or any major increase in power, it is "Mixture, Prop,
Throttle." Airplanes with levers all in one area make this an easy one-handed
operation, my Bonanza is a bit more difficult with vernier controls.
If all this is too radical for you, then please do yourself a favor and give your
current written checklist a very hard look, with an eye towards deleting unnecessary
items. You should realize that the only portions of your POH that are approved by the FAA
are "Limitations." Everything else is "suggested," including the
manufacturer's checklists, which are usually written by committees of lawyers doing the
old "CYA." Even worse are some of the old military checklists, most of which
seem to cover everything in the cockpit, and which are rarely used by warbird operators.
One DC-3 I used to fly had 132 items on the pre-start check, something only an insane
check pilot could enjoy, or perform.
By way of example, take heaters, or lights, or radios. None will kill or injure, if
forgotten, so why have them on a checklist? If you forget your transponder, the worst that
will happen is that ATC will say, "confirm squawking," generally with a little
chuckle, because they know what you did - or didn't do.
For items to put on your new checklist, consider fuel, because the consequences of not
having enough, or having the wrong tank selected are so catastrophic. Similarly,
"Controls" is a worthwhile item, because history teaches us that this is a major
killer. Flaps? Well, maybe the flaps on the airplane you usually fly are not critical, but
we're trying to come up with a checklist that will serve for most anything, and flaps are
pretty important on many airplanes. Similarly, an incorrectly set trim tab can be a nasty
surprise on many airplanes, so I think it should be included on any pre-takeoff checklist.
In summary, use a consistent, logical, well-thought-out plan, follow it always, and
then have a short final check (mental or written) for only "The Killer Items."
Be careful, up there!
NOTE: This column generated considerable controversy. (There's nothing wrong with that, it's why we asked John to write: to make us all think about what we are doing.)
Unfortunately, a good deal of that controversy appeared to stem from misunderstandings about what he wrote, generating more heat than light on the subject. Others apparently agree with John's points, but for some reason think he shouldn't say what he said. In his next column, "Checklists Redux," John clarifies some of the points that appear to have been misunderstood by some readers and he then goes on to expand upon the subject of checklist use.
Don't miss reading "Checklists Redux."
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