Incident Overview
A training flight involving an instructor and a student conducted a simulated engine-out emergency approach. During the maneuver, both pilots realized that they would not reach the runway while gliding. The student then applied power, but the engine did not respond. The instructor took control of the aircraft and executed a forced landing. Upon touchdown, the nose gear sheared off, and the airplane nosed over.
Sequence of Events
The instructor initiated the simulated emergency by reducing power to simulate an engine failure. As the aircraft descended, the instructor and student assessed the glide path and determined it was insufficient to reach the intended runway. In response, the student attempted to add power, but the engine failed to produce thrust. The instructor immediately assumed control and performed a forced landing in an off-airport area. The landing resulted in structural damage: the nose gear separated from the airframe, and the aircraft flipped onto its nose.
Engine Testing
Following the accident, engine tests were conducted to determine the cause of the power loss. The tests revealed no mechanical or non-mechanical reasons for the engine's failure to respond. The engine was deemed functional and without anomalies.
Procedural Noncompliance
Investigation into the incident identified that the instructor did not follow the procedures and directives outlined in Advisory Circular AC61-21A. Specifically, the requirement to keep the engine warm and to perform an engine 'clearing' procedure during the simulated emergency approach was not executed. This deviation from standard practices was noted in the report.
Conclusion
The accident sequence began with a simulated emergency, which transitioned into a real power loss. Despite the engine later testing normally, the lack of procedural adherence during the simulated approach was highlighted as a key factor in the event.