Joyriding Pilots Make Fatal Mistake / Pinnacle Airlines 3701
Black Box Down
00:00
The Stick Shaker and the Stick Pusher Activate at a Vertical Speed
Over the next nine seconds, flight data recorder recorded three activations of the stick shaker and stick pusher. During the second activation, the fan speeds of the engines and the fuel flow indications began decreasing on both engines. Data showed that at this time, the angle of attack had also increased to 12 degrees. Then after the third time that the stick pusher activates, the pitch angle decreased from seven degrees up to negative 20 degrees. At that point they totally interstal. Now, the airplane begins a left rolling motion, which reaches 82 degrees, left wing down, and the airplane's pitch angle increased to negative 32 degrees. So they're almost rolled entirely on their left side and 32
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