Originally posted by CaptainSandL
Dont forget the Air Florida accident at Washington in 1982. Part of the reason for the snow accumulation on the wings was thought to be that it was blown up from the ramp during power back.
That airplane did not “power back.” The Captain opened the thrust reversers (with idle thrust) in an effort to assist the tug in “pushing back” with the engines running and the tug slipping on the ground just after having the airplane “de-iced.” That didn’t work. So the Captain shut down the engines and they got a larger tug to push them back. The accumulation of ice on the wings was not due to “blow up” from the ground as alleged; it was due to the improper de-icing procedures performed with only 3% glycol solution and 160 degree heated water.