Originally Posted by
Gove N.T.
If I recall, thrust reversers used at push back was a contributory factor in the Air Florida 90 crash in Washington in 1982
That wasn't conclusively identified by the NTSB as a factor, only as a possibility:
"Contrary to flight manual guidance, the flightcrew used reverse thrust in an attempt to move the aircraft from the ramp. This resulted in blowing snow which might have adhered to the aircraft."
Air Florida, Inc., Boeing 737-222, N62AF, Collision with 14th Street Bridge