主题：【原创】水牛城Colgan3407航班坠机事故 -- Slay0r

The captain of a commuter plane that crashed Feb. 12 near Buffalo, N.Y., had flunked numerous flight tests during his career and was never adequately taught how to respond to the emergency that led to the airplane's fatal descent, according to people close to the investigation.

The crew initially didn't notice the plane's speed had dropped dangerously low, sliding under 115 miles an hour, and risked going into a stall. The slowing speed set off an emergency system called a "stick-pusher," which pushes the control column down in order to send the aircraft into a temporary dive so it can regain speed and recover from a stall.

However, Capt. Renslow tried to force the plane to do the opposite. He yanked back on the controls while adding thrust. His effort was strong enough to manually override the stick-pusher. Within seconds, the plane lost lift, bucked violently and started to roll. It slammed into a house five miles from the runway.

Investigators surmise the pilots didn't fully understand the operation of one ice-protection system, and therefore incorrectly programmed approach speeds into a flight computer. Startled by an initial stall warning at low altitude, Capt. Renslow reacted with the mistaken assumption that ice accumulation on the tail caused speed to suddenly drop well below normal, investigators believe. The NTSB has said the plane wasn't significantly affected by icing.