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The December 1997 SilkAir 185 crash in Indonesia and the October 1999 Egypt Air 990 crash in the U.S. have both focused attention on an aviation safety question that most of us would really rather not discuss: pilot suicide. Could psychological testing of pilots help prevent this sort of tragedy? Does cockpit crew size (three vs. two) make a difference? Does the FAA's policy of grounding pilots who take antidepressant medication help or hurt? AVweb's Ken Cubbin examines these and other facets of the problem.
August 6, 2000
On
October 31, 1999, 217 passengers and crew lost their lives when Egypt Air 990
crashed into the sea off Nantucket Island, Mass., 40 minutes after having taken
off from New York's JFK airport. With most of the wreckage now recovered from
the ocean, investigators can find no evidence of mechanical failure that would
warrant reconstructing the airplane. Investigation into the cause of the
accident still continues. But, based on physical evidence, flight data and voice
recorder information, the predominant theory remains that pilot Gamil El-Batouty
-- who took the controls shortly after takeoff -- deliberately caused the Boeing
767 to dive into the sea. (The pilot's family and Egypt Air officials vehemently
defend the pilot's character and insist that investigators are incorrect in
their presumption.)
When aircraft manufacturers design airplanes, they incorporate failsafe and
fail-operational features that make it most unlikely for any single mechanical
failure to cause an accident. However, the one phenomenon that engineers find it
impossible to account for is when a pilot intentionally flies his aircraft into
terrain. This phenomenon is popularly referred to as "pilot suicide,"
although in some cases it might be more accurate to call it "murder."
Accidents like these raise troubling questions. How could such things happen,
especially in the cockpit of a commercial airliner? How could a pilot who
commits such a crime have remained functional on a day-to-day basis before the
tragedy? How could such an obviously troubled pilot have avoided detection by
family and friends? Why couldn't other crewmembers have stopped the pilot from
carrying out his destructive act?
Could they have been stopped?
In
1997, a SilkAir Boeing 737-700 crashed into the Musi River in Indonesia, killing
104 people. Investigators concluded that the most probable cause of this
accident was deliberate, controlled flight into terrain by the captain who -- in
an effort to confuse future investigation into the accident -- allegedly pulled
cockpit voice recorder and flight recorder circuit breakers while returning from
a visit to the rest room. If this scenario is true, then the captain's actions
constitute premeditated murder. Apparently, the captain had recently been
demoted from instructor and many other pilots who had flown with him had
informally complained of his non-standard operation. Therefore, there was some
evidence of aberrant behavior by this pilot prior to this accident that may have
been a clue as to his state of mind.
In 1994, a Royal Air Maroc ATR-42-300 jet plunged into the ground ten minutes
after takeoff from Agadir killing all 44 people on board. Investigators
concluded that the captain had deliberately steered the plane into the ground.
(The Moroccan Pilots Association disputes this claim.)
In 1982, a Japan Airlines (JAL) DC-8 crashed into Tokyo Bay while on approach
to Haneda Airport in Japan, killing 24 and injuring 141. The captain allegedly
pushed the nose down prematurely and pulled the inboard engines into reverse
while on approach to the airport. Despite attempts by the first officer and
flight engineer to rectify the perilous flight path, the captain was successful
in his efforts to terminate the flight prematurely. After exhaustive
investigation of this accident, the captain was placed into a psychiatric
institution. Sources at JAL who knew this captain personally informed accident
investigators that it was general knowledge the captain's behavior had been
erratic before the accident. After the accident, there were accusations that
JAL's management had been aware of the captain's mental instability but had
failed to relieve him of flight duty. However, Japanese authorities ultimately
concluded that both of these accusations were unfounded.
In several of the above examples, a pattern of aberrant behavior had been
demonstrated by the pilots who eventually took their own life and the lives of
others.
Psychological testing of pilots
According to American Psychological Association
(APA) databases, a number of papers have been written on the subject of pilot
suicide in general aviation. For example, a 1994 paper by Timothy J. Ungs titled
"Suicide by Use of Aircraft in the United States, 1979-1989" states
that the NTSB reported nine fatal accidents attributed to pilot suicide during
the 1979-1989 period. NTSB investigations identified evidence of important
adverse psychological factors in most of the pilots, including depression or
negative life events.
In 1998, Anthony S. Cullen reported in his paper titled "Aviation
Suicide: A Review of General Aviation Accidents in the U.K., 1970-96" that
out of 415 general aviation accidents, three definite cases of pilot suicide and
possibly another seven occurred in the United Kingdom. Again, the pilots'
previous psychiatric problems, familial instability and alcohol misuse were
identified as causal factors.
In Germany, Bernhard Maeulen reported in his 1993 paper titled "An
Aeronautical Suicide Attempt -- Suicide and Self-Destructive Behavior in
Aviation" that:
"Approximately 2%-3% of all fatal general aviation accidents in
Germany may be attributed to suicide, and in many other accidents in
aviation there are grounds for inferring that self-destructive and suicidal
behavior was involved."
Investigators concluded that precursors to these accidents included pilot
depression, alcoholism and family problems.
Although these papers all refer to general aviation, their conclusions appear
to concur that the offending pilots had a history of previous psychiatric or
domestic problems and/or alcohol abuse. It would be logical to assume that
similar problems exist in the lives of airline pilots. What can be done to
ensure that such tragic events do not occur again in commercial aviation?
Three vs. two
At
first look, it would appear logical that three crewmembers in the cockpit stand
a better chance of ensuring such events will not occur. For example, had three
crewmembers been on the flight deck of the SilkAir B-737, the captain might
have found it much more difficult to surreptitiously pull circuit breakers when
returning to the cockpit from an in-flight visit to the rest room. If he had not
been able to throw this curve ball to future investigators, he might have
aborted his plan to crash his airplane.
Conversely, the JAL DC-8 accident in 1982 would suggest that three persons
are no more effective than two at preventing pilot suicide, since the
first officer and flight engineer were unable to prevent the captain from his
dire actions. Such a conclusion might be premature, however, because until
approximately 15 years ago, the patriarchal society that has existed in Japan
for centuries dictated that subordinate males revere and never question senior
males. Therefore, one can only wonder how vigorously the first officer and
flight engineer fought with the captain for control of the aircraft. Of course,
even if the first officer and flight engineer fought the captain with all means
at their disposal, the aircraft was at low altitude with two engines in reverse,
so perhaps it was a case of "too little, too late."
After Cockpit Resource Management (CRM) programs were introduced into
Japanese airlines in the mid-80s, the status quo of blind hierarchical obedience
began to change. In addition, contemporary youths in Japan's general population
are questioning the validity of "the old way" and are rebelling in
various ways against their elders. As a result, if the same circumstances were
to occur today, it is probable that a Japanese captain would be more vigorously
restrained by the other crewmembers. Still, as mentioned previously, if the
aircraft were low and on approach, any efforts to recover the aircraft might
still be unsuccessful.
During my flight engineer training experience over the last 20 years, I have
conducted episodes in the simulator where the captain was instructed to act as
though he had become incapacitated. The fastest method of restraining the
captain under such conditions, I discovered, was for the flight engineer to
grasp and pull back on the captain's shoulder harness. This was entirely
adequate for subtle or non-violent incapacitation as it kept the captain from
interfering with the first officer's control of the aircraft. However, if the
captain were physically resisting restraint -- as he might if he were intent on
killing himself and all on board -- it might be necessary for the flight
engineer to use force to ensure the first officer could recover the safe
operation of the airplane. How much force might be necessary?
According to one report of the SilkAir crash, the sound of what is thought to
be the first officer being struck by a heavy object is heard on the CVR shortly
before the aircraft impacted the ground. If a flight engineer had been on board,
would he or she have used a similar measure of force to restrain the captain in
time for recovery? Can a rational crewmember come to the conclusion that the
captain must be violently stopped from his criminal intentions in time? I think
it highly unlikely.
So although it might seem logical that having three flight crewmembers aboard
all flight decks might prevent such occurrences, this is by no means certain.
Three crewmembers might still be duped by the covert action of one -- and two
crewmembers might be unable, or unwilling, to use sufficient force to restrain
the third in time to recover safe operation of the airplane.
Who's at risk?
Let
me say up front that I have no psychological or clinical psychiatric expertise.
But an article titled "The Neurobiology of Depression" published in
the June
1998 issue of Scientific American presents some opinions that I find
quite interesting. At the time the article was published, its author Charles B.
Nemeroff was professor and chairman of the Department of Psychiatry and
Behavioral Sciences at the Emory University School of Medicine.
In his article, Professor Nemeroff describes the symptoms of depression as
being quite different from "the blues" that everyone feels at one time
or another, including grief from bereavement. He states that depression can
include a sense of overwhelming sadness, guilt, and a sense of
self-worthlessness. A person suffering from depression may lose appetite and
have trouble sleeping -- or conversely, want to eat and sleep constantly. Such
people can be preoccupied with suicide and have difficulty thinking clearly,
remembering, or taking pleasure in anything.
How can someone suffer from such debilitating effects and yet remain
functional? Eva Winer, a spokesperson for the APA, explained that in her career
as a testing officer in a psychiatric hospital, she had seen "many
deep-seated, practically asymptomatic cases of 'smiling' or 'larvae' depression
that didn't impair daily functioning and easily went undetected for a long
time." Therefore, presumably, a person can be severely
depressed, yet hide it from his or her peers.
Professor Nemeroff suggests "that 5 to 12 percent of men and 10 to 20
percent of women in the U.S. will suffer from a major depressive episode at some
time in their life. Roughly half of these individuals will become depressed more
than once, and up to 10 percent (about 1.0 to 1.5 percent of Americans) will
experience manic phases in addition to depressive ones, a condition known as
manic-depressive illness or bipolar disorder
As many as 15 percent of those
who suffer from depression or bipolar disorder commit suicide each year."
In what may be a very disturbing statistic in relation to pilot suicide,
Professor Nemeroff contends that "many people who kill themselves do so
in a way that allows another diagnosis to be listed on the death certificate, so
that families can receive insurance benefits or avoid embarrassment."
The FAA as "Doctor No"
A deficiency
in serotonin in the brain stem can result in the affected person suffering
ailments such as severe and chronic depression. This subgroup of depression
sufferers will find no relief unless their condition is treated with
medication. Antidepressants such as Prozac have been very successful in treating
depression.
However, antidepressant medication is currently not approved by the FAA, and
a pilot who is prescribed such medication will have his or her medical revoked.
For transitory depressions, the pilot who chooses to take antidepressants can
have his or her medical restored after the he or she has discontinued medication
for 60 to 90 days and the prescribing doctor confirms in writing that the
pilot's original condition is no longer evident.
The makers of Prozac, Ely Lilly and Company, state that the drug's benefits
may not become apparent until one to four weeks after beginning the medication.
It also recommends that antidepressant medication be taken for six to 12 months
to monitor its success. Approximately 17 million Americans have been treated
with Prozac and the drug has been proven safe and effective over the last ten
years. Side effects can include nausea, insomnia, drowsiness, anxiety,
nervousness, weakness, loss of appetite, tremors, dry mouth, sweating, decreased
libido, impotence or yawning. These side effects tend to go away after several
weeks of medication.
Presumably, since usage of Prozac and other antidepressants is so widespread,
other professionals in highly demanding and responsible positions continue to
function while taking the drug. Doctors, school bus drivers and police officers
are just a few job classifications that come to mind. If a cardiac surgeon is
taking Prozac, does he or she suffer the same scrutiny by his or her regulating
authorities? I don't recall reading any reports of doctors who have had their
license revoked simply because they were taking antidepressants.
However,
since the FAA will not allow a pilot to fly while on antidepressant medication
and for a period of up to three months after cessation, if a pilot elects to be
treated in this manner, he or she could be out of work for well over a year. In
adopting this attitude toward a treatment that has been proven safe over the
last ten years, the FAA tacitly forces a professional pilot with severe
depression to make an agonizing choice: give up his career, or continue to fly
without treatment.
FAR Part 67.107 states that a pilot can have no established medical history
or clinical diagnosis of psychosis (delusions, hallucinations, etc.),
personality disorder, neurosis, bipolar disorder or other mental condition. This
is explicit and precludes a pilot any hope of getting treatment for depression
without having his or her medical revoked. A group of online AMEs, Virtual
Flight Surgeons (http://www.aviationmedicine.com),
point out that the primary medical responsibility of the FAA is to gauge whether
a pilot's medical condition is compatible with safe flight. Medication and its
effect on treatment is secondary, and the FAA may also ground pilots who suffer
from side effects of medication.
Perception vs. reality
Unfortunately,
as an agency that depends on Congress for its budget, the FAA has to be
concerned not only with actual safety issues, but also with the perception of
the travelling public. In this regard, the powers-that-be at FAA Headquarters
seem to believe that the travelling public would never accept the idea of having
their flight piloted by a person taking antidepressant medication.
The truth, however, is that by disqualifying pilots who are prescribed
antidepressant medication, the FAA has created a situation that is potentially
much more serious: The traveling public may have their aircraft piloted by a
person who is severely depressed but masking his or her symptoms -- or a
person who is taking medication on the sly -- in order to keep his or her job.
Under such circumstances, which flight will prove to be the last straw for the
pilot who can see no light at the end of a tunnel?
Despite becoming more sophisticated in terms of mental disorders and accepted
treatment, there is still a stigma assigned to those people who receive such
treatment by the general population. Any number of stand-up comics and comedians
routinely refer to those who take Prozac and other antidepressants in a
derogatory manner. A person who has a serotonin deficiency has a similar need
for medication in order to remain functional as a diabetic who needs insulin.
However, one never hears a comedy routine belittling those who regularly
take insulin shots. Apparently, one chemical deficiency is socially acceptable,
and the other is the butt of jokes. Ironically, the FAA will now consider
reissuing a third-class pilot's license on a case-to-case basis for those people
who require insulin to control diabetes. Several other medications used to treat
other potentially debilitating ailments, such as migraine headaches and
Parkinson's Disease, also have FAA approval.
As a result of the present situation, even if a pilot is aware that
antidepressants might alleviate his or her depression, he or she might elect to
"tough it out" in order to remain employed and provide an income for
his or her family. To make matters worse, a pilot may be severely depressed but
not recognize the insidious nature of his or her condition; in this case,
seeking medical attention might not even occur to him or her.
Between a rock and a hard place
It is the very nature of flying single-pilot aircraft that no other person
can assist while the aircraft is in the air. The pilot is the person who must
make the decision, good or bad. Therefore, because a pilot spends the formative
years of his or her flying career as a sole pilot-in-command, he or she develops
a strong sense of independence and self-reliance. This independent streak might
prevent a pilot from seeking help if he or she has a problem that seems
insurmountable. Alternatively, he or she may refuse to acknowledge that a
problem really exists.
For an airline pilot, flying changes from an enjoyable hobby to a career.
Professional pilots are expected to conduct themselves with propriety and
diligence. Every year, a physical examination is conducted to assure authorities
that each pilot is physically and mentally capable of continuing to fly.
Most airline pilots marry, have children, and assume all the financial
burdens typical of modern adults. As a consequence, the pressure of needing to
continue to work to support a family might restrict a professional pilot from
taking time off to address his or her problems.
Another factor that may cause airline pilots to hide or ignore their problems
and avoid medical help is the complex and sometimes adversarial relationship
that exists between pilots, the FAA and airline management. Airline managers ask
pilots to confide their innermost problems, while simultaneously threatening to
take away their livelihood. The FAA is even more intolerant, with the criteria
for losing a pilot's medical mostly spelled out in the black-and-white clauses
of FAR Part 67.
To be fair to airline management and the FAA, they have to impose
strict control over pilots' fitness. It would be irresponsible of them not
to remove pilots with severe mental problems or alcohol abuse from the flight
line. However, the knowledge that a pilot can be relieved of flight duty and
possibly dismissed undoubtedly prevents many pilots from seeking medical
assistance, and discourages crewmembers from reporting misdemeanors committed by
their peers. Who wants to be responsible for a pilot's family suffering because
of a loss of income? What pilot would voluntarily confess to a condition that
would mean imminent removal from flight duty unless forced to do so?
In my airline career, I have known of only two crewmembers who ultimately
lost their job because of alcohol abuse. Both of these pilots were commonly
known to have severe drinking problems, but none of their peers complained to
management nor refused to fly with them -- probably for the reason stated above.
Ultimately, both of the pilots self-destructed: One embarrassed himself and the
airline by his behavior while deadheading and the other was arrested for
insobriety while on a layover. Both were given an opportunity by the airline
involved to seek help for their problem -- however, both of the pilots resigned.
Only one pilot, with whom I have been acquainted, was reported to airline
management by his peers for irrational behavior. When his manager called the
accused pilot onto the mat, he was faced with the reports by his compatriots --
as a result, he resigned. Whether the pilot resigned over a sense of guilt or
embarrassment, or whether he just couldn't imagine continuing to work with other
pilots who had complained of his behavior, I will never know. To this day, there
are many pilots and flight engineers -- myself included -- who believe that
personality clashes with a few of this pilot's peers brought about complaints to
airline management that were both unwarranted and exaggerated. Depending on your
point of view, either a mentally unstable pilot was rightfully removed from
flight duty, or an innocent-but-eccentric individual was vilified by a few
treacherous fellow crewmembers.
Alcohol abuse is treatable and a full recovery to normal sobriety is
possible. However, for more insidious mental disorders such as depression due to
chemical imbalances in the brain, a pilot may have no hope of maintaining
his or her employment if he or she seeks help. That person is stuck between a
rock and a hard place.
AVweb's survey results
A recent informal survey conducted by AVweb
asked and received responses for the following three questions:
- Have you ever had a medical condition for which you chose not to
seek treatment for fear that disclosure might jeopardize your flying?
(567 responses)
- Have you ever had a medical condition for which you sought medical
treatment, but then failed to disclose it on your FAA medical application
for fear that disclosure might jeopardize your flying? (563
responses)
- Do you take medication about which you have not told the FAA?
(561 responses)
The responses to these questions clearly indicate that a significant number
of pilots would rather self-medicate or try and work through their problems
without professional medical assistance, rather than risk losing their medical.
These statistics may actually understate the problem. Feedback to AVweb
on the survey questions indicates that a number of pilots did not respond to
the survey for fear the FAA would somehow find out their identity.
Therefore, the statistics above may actually underestimate the
number of pilots who are reticent to seek medical treatment for fear of inciting
the wrath of the FAA.
Aggravating factors
As
a crewmember on long-haul international flights, it's my opinion that duty cycle
patterns that cause a pilot to be isolated from his or her family and home life
for extended periods of time can only exacerbate depression. We all know what
happens: The day after you walk out the door to go to work, your child has an
asthma attack and has to be hospitalized or the plumbing in the attic leaks and
floods the house. Whatever the catastrophe, it's sure to occur when you are away
from home. A depressed pilot may feel responsible for these family crises and
blame him or herself.
Cumulative fatigue caused by chronic circadian rhythm disruption and heavy
workloads imposed by the airline duty roster can weigh heavily on any
pilot's shoulders. If a depressed pilot is already finding it difficult to
sleep, then the weight added to his or her fatigue by flying the line may be
enough to push him or her over the edge. To top it off, a depressed pilot's
feeling of being unable to seek medical help can only serve to deepen his or her
sense of hopelessness.
Each of these influencing factors can be alleviated to some degree if airline
management and pilots' unions work together. However, if the FAA were to change
its policy and allow pilots to resume normal functionality with the use of safe
and effective drugs, then the potential of pilot suicide may be alleviated.
No easy answers
What a kettle of worms! Statistically many pilots will likely suffer from
depression at some point in their career, but may not seek treatment out of fear
of losing their job. Experts say that it is quite possible for a pilot to mask
the seriousness of his or her condition. Even if a pilot recognizes his or her
condition and desires to seek medical assistance, treatments such as Prozac may
not be available without throwing away his or her career. If the airline or the
FAA discovers that a pilot has sought medical assistance for depression and/or
was prescribed medication, then there is a good possibility that the pilot will
be suspended from flight duty. The FAA is charged with maintaining aviation
safety, but by its lack of latitude in allowing a pilot to fly on
antidepressants, it is arguably eroding safety rather than enhancing it. The FAA
says it's looking at the problem, but in reality the agency is probably scared
to death of the political repercussions if it were to relax its absolute
prohibition on psychotropic medications
Airline management, having become more aware that such things as pilot
suicide exist in our modern world, have to tighten their scrutiny of
pilots' mental fitness while maintaining an empathetic attitude towards the
affected pilots' careers. Airline unions would likely resist any exhaustive
psychological testing of their members each year as such tests could be
used to justify airline managers who selectively dismiss troublesome employees.
However, a balance of what is good for the pilots and what is good for the
safety of all who fly with them must be met. Airline management can act
to alleviate the fatigue factor caused by long duty-days and long patterns, and
should do so immediately.
One airline with which I am acquainted includes a psychological test as part
of a crewmember's annual physical. However, the test is hardly comprehensive --
the questions asked by the medical examiner are general in nature and easily
deflected by the crewmember being examined. As far as this test is
concerned, it seems as if the airline is content with making a token effort at
ensuring each of its crewmembers is mentally fit. Having said that, at least it
is making some effort to assess crewmembers' mental alacrity and
well-being.
The sad truth is that it may be up to us -- pilots and flight engineers -- to
bring other crewmembers' aberrant behavior to the attention of airline
management. As much as we all hate to tattle on our peers, such action might be
necessary in the interest of safety. But what constitutes aberrant behavior?
Should a pilot be reported because he or she is depressed over an impending
divorce? How do you protect an eccentric individual from being wrongfully
accused? Who is to set these criteria? I, for one, would be reluctant to tread
this path unless a pilot had blatantly put his or her crew and passengers in
imminent danger ... but by then, it may be too late.
Even though evidence exists that some pilots have functioned normally on a
day-to-day basis while undergoing severe depression, it seems highly unlikely to
me that someone, somewhere, was not privy to the affected person's
mental state. In each of the airline pilot suicide cases mentioned at the
beginning of this article, the pilot's family refused -- out of a sense of
loyalty, or out of denial -- to believe their loved one would commit such an
act. However, if members of the pilot's family were truly honest with
themselves, maybe they would recall evidence of their loved one's illness. Those
closest to the depressed pilot are the most likely to identify the problem.
However, family members and close friends are also the least likely to turn the
pilot in (ex-wives and ex-husbands excepted).
There are no easy answers. At the very least, I would suggest that a
cooperative study be conducted by pilot unions, airlines, the FAA and
appropriate medical authorities to determine what can be done to assist pilots
who suffer from serious depression without jeopardizing their employment.
Anecdotal and clinical evidence exists that prove a person can return to normal
function after being treated with antidepressants and waiting for any associated
side effects of the drugs to dissipate. In the hectic pace of modern life where
more and more people are becoming disassociated from each other and there never
seems to be enough hours in the day to accomplish all that we need to do, the
prevalence of depression is likely to increase. Somehow, we must all work
together to ensure that those who need help for depression can get it without
jeopardizing their career.
The wheels turn slowly at the FAA, but it is high time that pilots were
reclassified as normal human beings who suffer from everyday, treatable ailments
that can be controlled effectively by the use of medication. The alternative
could be murder.
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