The A&P Mechanic and Fatigue - They Don’t Play Well Together

Late last year, the Federal Aviation Administration (FAA) addressed the issue of implementing long-overdue new fatigue standards for pilots. The new regulations revise hours-of-service rules that more accurately reflect our understanding of human fatigue. The rules set a 10-hour minimum rest period before flight duty, a two-hour increase from the previous standard. This allows pilots a chance to get eight hours of sleep before a duty period instead of the five or six hours they were getting under the old rules. A pilot will also be allowed only so much on-duty time in a 28-day period.

It appears that the FAA has again addressed the issue of the dangers posed to the flying public by fatigued pilots, and I take my hat off to them for doing so. However, like many things the feds have done of late, they are only addressing part of the problem. It’s like seeing someone drowning 100 feet from their boat and throwing them a floatation device just 50 feet out. “Well, we met them halfway. What more do you want?” asks the FAA.

When I say they are only addressing part of the problem, I mean that the new requirements won’t apply to cargo aircraft pilots, not even when they’re flying a Boeing 747 halfway around the world. By excluding cargo pilots from its new rules, the FAA is failing to adhere to its mission of making safety its first priority. What about helicopter pilots? Where do they fit into the scheme of the new regulations? I have not seen anything in that arena so far.

Now we come to the heart of this editorial. What about fatigue standards for the men and women who work to maintain aircraft in safe, reliable flight status? Whether working on fixed-wing or rotary-wing aircraft, why is there no concern for the hours aircraft maintenance technicians work? Do the feds honestly believe that maintenance and fatigue go well together?

For the uninitiated, an aircraft maintenance technician or AMT (when used as a term in the United States), refers to an individual who holds an FAA-issued mechanic’s certificate. The rules for certification and for certificate holders are detailed in Subpart D of Part 65 of the Federal Aviation Regulations (FARs) which are part of Title 14 of the Code of Federal Regulations. AMTs inspect and perform or supervise maintenance, preventive maintenance and alteration of aircraft and aircraft systems. In the U.S., AMTs usually refer to themselves as A&Ps (which is short for airframe and powerplant mechanics). In Canada, they refer to themselves as aircraft maintenance engineers, or AMEs. These are highly-qualified individuals and someone at the fed forgot that without them doing their jobs, pilots could not do theirs safely.

Fatigue comes in two main categories: physical fatigue and mental fatigue. Physical fatigue says that the muscles just don’t want to work anymore. Mental fatigue can be defined as a temporary inability to maintain optimal cognitive performance. The onset of mental fatigue during any cognitive activity is gradual and depends upon an individual’s cognitive ability. It also upon upon other factors such as sleep deprivation and overall health.

Mental fatigue has also been shown to decrease physical performance. It can manifest itself as somnolence, lethargy or directed attention fatigue. It may also be described as a more- or less-decreased level of consciousness. In any event, this can be dangerous to the extreme when performing tasks that require constant concentration such as operating large vehicles, doing surgery or performing maintenance on aircraft.

If the feds are so worried about the hours a pilot needs to rest between flights, does it not make sense that they should be just as worried about the amount of rest an AMT is allowed between work shifts? What good does it do to have a well-rested pilot if your maintenance crew can’t keep their eyes open while working on the aircraft? Will those persons who will fly on the aircraft really be any safer if just the pilot is well rested?

R. Fred Polak  |  Editor