Incident Description
During a biennial flight review, the pilot-owner initiated a simulated emergency landing. According to reports, the engine was not cleared during an extended power-off descent from 900 feet. As it became apparent that the intended landing field would not be reached, the flight instructor assumed control of the aircraft and advanced the throttle to full power.
Sequence of Events
The engine failed to respond to the application of full throttle. Consequently, the aircraft was landed short of the runway in an area characterized by soft, wet, and rough terrain. After touchdown, the airplane nosed over.
Findings
Subsequent inspection revealed no mechanical discrepancies with the engine. The aircraft sustained damage during the nose-over. No further details about the aircraft, occupants, or injuries were provided in the source.