The International Civil Aviation
Organization (ICAO) classifies depression as a "mental abnormality" and
states that in order to receive a medical certificate, a pilot should
have no medical or clinical records of suffering from such an
abnormality. However, if you ban some pilots from flying while they are
receiving treatment for depression, then doesn’t this mean that you
discourage them from seeking professional help? In other words, is it
worse to have a pilot flying whilst suffering from an untreated
depression as opposed to the one whose psychological problems are being
addressed professionally?
One of the most recent studies of
aircraft assisted suicides in the United States has found that in a
20-year period (1993–2012) the proportion of general aviation suicides
in relation to the total number of fatal aviation accidents is 0.33%.
However, the study has also revealed that only 22% of all individuals
committing suicide communicate such an intention during their last
appointment with a health professional. The reality is that the process
of reliably detecting psychological problems, particularly at the early
stages, if the patient does not cooperate, is extremely difficult. On
top of that, pilots, probably more than any other professionals, may
find themselves under pressure to conceal the problem as the diagnosis
could easily become the ending point in their careers.
The impact of SSRIs...
The treatment for
depression often involves taking an antidepressant. Although the type of
drugs approved by the aeromedical regulatory authorities for the use by
pilots varies from country to country, the most prevalent avenue for
the treatment of depression is the course of Selective Serotonin
Reuptake-Inhibitors (SSRIs); however, due to adverse reactions, SSRIs
have been widely criticized by many members of the aerospace medical
community in terms of their effects on psychomotor performance.
In the meantime, multiple post-mortem
samples from pilots involved in fatal civil aircraft accidents in the
United States during 1990–2001 revealed that out of 4,184 fatal civil
aviation accidents, as many as 61 plane was piloted by a professional
taking SSRIs. As determined by the National Transportation Safety Board,
the use of an SSRI has been a contributing factor in at least nine
(0.02%) of the 4,184 accidents. However, it is noteworthy that other
factors, such as the weather conditions, mechanical deficiencies, and/or
piloting errors, could not be completely ruled out in the
aforementioned 61 cases.
.and other drugs used among pilots
Additionally,
another notable study conducted by the FAA Civil Aerospace Medical
Institute and the National Transportation Safety Board (NTSB) revealed
that out of 1353 pilots involved in fatal accidents during 2004-2008, as
many as 92 (or 7%) were found to have ethanol (alcohol) present in
their systems. Moreover, 28 (2%) of them tested positive for marijuana
and 9 (0.7%) - for cocaine.
Meanwhile, multiple studies indicate
that the percentage of drug users amongst pilots has remained relatively
constant over the past 20 years (around 0.02%). However, the percentage
of alcohol, cocaine and marijuana users is much higher amongst pilots
treated with SSRIs.
Considering the aforementioned statistics, the currently used pilot health screening system is clearly far from perfect.
The choice is ours
If the reaction to the
latest catastrophe in the Alps is to immediately assume that all pilots,
with or without a history of mental illness, cannot be trusted on their
own, it will do a great disservice to all pilots and will certainly
dissuade those who suspect having mood swings or depression from seeking
help.
“As far as I know, airline pilots don't
regularly have their mental health assessed. There are pilots with
history of depression who have flown safely for decades. No destructive
behavior can be directly linked to mental illness, as multiple studies
have shown. Just as in hospital practice, pilots with alcohol problems
should know they may count on receiving help, get appropriate treatment
and return to their normal and happy life. Pilots dealing with stress
and anxiety should know that too,” shares a psychologist familiar with
aviation. “The main issue does not even lie with psychology specialists
or pilots themselves. Instead, it is rather a regulatory concern, with
both mental and physical well-being of pilots (and thus passengers)
being the top priority for airlines and the entire industry.”
Instead of a lengthy conclusion, let’s
consider several noteworthy examples. The Canadian aviation authorities
have an aeromedically supervised treatment protocol that allows a small
number of pilots to fly “with or as co-pilots” whilst undergoing
antidepressant treatment and therapy. In the meantime, from January 1993
to June 2004 the Australian Civil Aviation Safety Authority (ACASA)
allowed nearly 500 pilots and air traffic controllers to return to duty
while their depression was under control with SSRIs. Guess what? All of
them (apart from those in retirement) are still flying planes today… and landing them safely.
What does that mean? Mainly, that a
combination of awareness, support and advocacy can help save lives. The
airline industry needs to create an open environment where pilots always
feel comfortable in admitting whatever issue they may have.