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Edited on Wed Feb-15-06 01:48 PM by Tesha
I'm sorry, but I guess I've forgotten the last time deliberately non-performed maintenance caused a major's aircraft to fall out of the sky.
An accident due to the mis-performance of maintenance was United Airlines Flight 232 in 1989, where a crack in a turbine blade went undetected, the turbine disk broke, and severed all the hydraulic lines. But this was definitely not a case of deliberate failure to perform maintenance but rather the way the maintenance was performed. And of the 296 people aboard, 175 passengers and 10 crew members survived. The crash was eventually blamed on poor attention to the human factors in United Airlines' specification of maintenance processes.
Before that, there was American Airlines Flight 191 in 1979, where it was maintenance performed in a short-cut fashion using a fork-lift to remove and re-mount engines that caused the engine to part company from the airframe, sever the hydraulic lines to the wing slats, and kill everyone aboard.
One might also think about ValueJet's little problem with oxygen generators, but that wasn't exactly a maintenance problem and they were certainly not a "major" airline.
And then there's Aloha Air's 737, where they pushed things a little too far in terms of airframe life, but that only killed a single flight attendant, severely injured two others, and mildly injured an additional 63. Again, not a major airline.
Alaska Air, on the other hand, simply didn't do the leadscrew maintenance because such work cost money and they could save a few bucks by skipping it, even though everyone knew this maintenance was needed to prevent the failure of the track nut. Too bad it cost lives, huh?
The quality of maintenance performed on the aircraft is still a very valid basis on which to select which airlines you'll entrust your life to.
Tesha
(Who has had the excitement of flying out of LAX and having AA's jet blow an engine on climb-out, forcing an immediate return to LAX)
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