Accident Overview
During a training flight, a certified flight instructor (CFI) was preparing a second pilot for a multiengine CFI check ride. After completing a touch-and-go landing, the airplane climbed to between 200 and 300 feet above ground level (AGL). The CFI intended to retard the left engine's throttle but inadvertently retarded the left engine's propeller control into the feather detent.
Maneuvering and Descent
The CFI maneuvered the airplane while attempting to restart the left engine. During this time, the aircraft bypassed several suitable landing sites and ended up overflying hilly terrain as it continued a gradual descent.
Loss of Control and Impact
The pilot lost control of the airplane as the airspeed decreased. The aircraft rolled to the left and collided with hilly terrain.
Post-Accident Examination
The left engine and propeller combination was removed from the aircraft and installed in an engine test cell. The engine, propeller, and propeller governor were found to function normally throughout their normal operating ranges.