"Nyal Williams" wrote in message
...
This is somewhat analagous to reported accidents by
Cessna pilots on takeoff; if the adjustable seats
are not properly locked in their rails the seat can
slide backward, making it impossible to push the yoke
forward.

That brings back nightmares. I had a Cessna 180 seat come off badly worn
tracks on takeoff. Somehow, I was able to scramble into the right front
seat before crashing.

Bill Daniels