What might cause a secondary stall during stall instruction?

A secondary stall can occur when a pilot attempts to return to a desired flight path too quickly after recovering from the initial stall. This often involves abrupt control inputs, which can lead to a situation where the angle of attack increases rapidly beyond the critical threshold again, causing the aircraft to stall again.

In stall recovery, it is crucial to adopt a smooth and controlled approach. Abrupt maneuvers can disrupt the airflow over the wings, leading to a loss of lift and the onset of another stall. Proper recovery techniques involve smoothly lowering the nose to reduce the angle of attack and regain airspeed, rather than making sudden movements that can create instability and lead to a secondary stall.

Delayed recovery, excessive nose-down attitude, and failing to execute recovery techniques are all significant factors that can contribute to stalls, but they do not specifically address the immediate, aggressive response that causes a secondary stall shortly after the first one.