By Bob Walsh
They have concluded that one of the engines fell off the
UPS plane that crashed in Kentucky a couple of days ago prior to impact,
killing all of the crew and at least nine people on the ground.
I
confess to having only modest knowledge of aircraft accident
investigation but I do seem to recall that when large, important parts
fall off of aircraft, especially when the plane is fully loaded and very
close to the ground, it is often very bad. One instance I am aware of
occurred after maintenance people got "creative" with their method of
removing and reinstalling the engine, which is normally very time
consuming. There were only three bolts that held the engine on, and if
you damage the mounts in the process of changing engines it can have
unintended results.
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