Accident Sequence
During a dual instructional flight, the CFI simulated an engine failure by reducing the throttle to idle. At 500 feet AGL, the CFI directed the student pilot to recover and execute a go-around. As the student added power, the engine lost power. The CFI assumed control and attempted to restart the engine, but was unsuccessful. The CFI continued the approach to the previously selected field.
Landing and Post-Accident
Upon touchdown, the nose landing gear sank into soft ground, causing the airplane to nose over and come to rest inverted. After the accident, a new propeller was installed. The engine was subsequently started and operated without any further problems. The reason for the loss of engine power could not be determined.