Originally Posted by
JohnBurke
The stick shaker was continuous, and indeed in the case of the Colgan mishap, activated some 20 knots sooner than it would normally activate, due to incorrect crew configuration of the stall warning system for icing conditions. Neither shaker, nor airspeed indication, nor stall annunciation, nor airframe buffet, nor pusher activation served to alert the pilot to the need to recover from a stall...or push the power up beyond partial, for that matter. Go figure.
Several process model problems in the scenario.
1. Stick pusher was not taught;
2. Higher stall speed warning. Would that lead to someone thinking that the stall warning was false? We have seen that in multiple accidents.
3. Combination of stick pusher with the above meet several of the criteria in that video for a tail stall.