Incident Overview
A student pilot reported that the preflight inspection and pre-takeoff engine run-up revealed no anomalies. During the flight, the instructor was demonstrating a simulated engine failure and forced landing procedure.
Sequence of Events
The student stated that as the airplane descended "close to the ground," the instructor "added power, the engine responded, and immediately the aircraft became unstable and he lost control."
Witness Observation
A witness on the ground reported that the airplane appeared to be practicing emergency landings. The witness observed the airplane moving "slower and slower" until "it stalled."
Conclusion
The accident investigation source did not provide a probable cause for the loss of control.