Accident Overview
A flight instructor reported that a pilot receiving instruction was demonstrating a power-off 180 degree landing. The instructor stated that as the airplane entered a close-in base to final approach, the airspeed slowed and the stall warning light started to flicker. The instructor said to the pilot flying, "nose down, nose down," and waited for him to correct. The instructor then took the flight controls, but as he did so, the airplane entered an aerodynamic stall and touched down hard on the runway.
Flight Details
During the landing roll, the flight instructor reported that he lost rudder authority but was able to use differential braking to maintain directional control and taxi off the runway. The right wing sustained substantial damage. The flight instructor reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Sequence of Events
The instructor was providing instruction for a power-off 180 degree landing. On the base-to-final turn, airspeed decreased, triggering the stall warning. Despite the instructor's prompt to lower the nose, the pilot flying did not immediately correct. When the instructor intervened, the airplane stalled and contacted the runway hard. After touchdown, rudder control was lost, but differential braking allowed the instructor to keep the airplane on the runway and clear it.