The stick shaker, which warns the pilots of an imminent stall, activated three times before the co-pilot brought the flight into a descent of 500ft in order to pick up speed.
In its paper, the AAIB said: "Safety action is being taken by the European Aviation Safety Agency, the operator and the manufacturer to implement an improvement that would address concerns about repeated activation of the stick shaker in the latter stages of an approach.
The loss of power and inappropriate flight control inputs generated a series of stall warnings, including the activation of the stick shaker
Before the actual stall, with the first horn, light or stick shaker
(depending on the airplane), level the wings, decrease the angle of attack a bit, apply full power and clean up as speed returned.
Less than five seconds before impact, the stick shaker
At four seconds there was a stick shaker
(when the plane's yoke vibrates) indicating the plane was in danger of stalling.
1]s reaction to the stick shaker
stall warning that operated just before the aircraft went out of control is in the spotlight, the NTSB report says.
There are angle-of-attack vanes on each wing, providing information to dual AOA systems that drive a stick shaker and pusher.
Pre-takeoff checks are brief and include checking the stick shaker and pusher, setting takeoff trim, which includes a significant amount of right rudder and assuring the annunciator panel is dark.
The US National Transportation Safety Board (NTSB) reported on Tuesday that it has determined that the captain of Colgan Air flight 3407 responded inappropriately to the activation of the stick shaker, leading to the an aerodynamic stall which the aircraft did not recover from.
The NTSB's report found that when the stick shaker activated to warn the flight crew of an impending aerodynamic stall, the captain should have pushed forward on the control column, but instead incorrectly pulled aft on the control column, placing the aircraft into an accelerated aerodynamic stall.