Incident Overview
During a training flight, a simulated single-engine-out go-around was initiated. The pilot reported applying full power to the left engine while the right engine was set to zero thrust. The aircraft was maintained at "blue line" speed (118 MPH indicated airspeed). The descent rate was arrested, following which the flaps and then the landing gear were retracted.
Pilot Actions and Observations
The pilot stated that after retraction, he was relying on visual cues and noticed that the aircraft altitude was descending below the minimum descent altitude. The aircraft felt "mushy." Upon cross-checking the flight instruments, the pilot observed that the aircraft was not climbing and continued to descend. He then lowered the nose to trade altitude for airspeed, but realized that the airspeed was at or slightly above the minimum controllable airspeed. The pilot immediately applied full power to the right engine, but the aircraft continued to settle and subsequently contacted the runway in a wings-level, slightly nose-high attitude.
Check Pilot Account
The check pilot onboard reported that full power was on the left engine and nearly or full power was on the right engine at the time of impact. Both pilots believed that the main landing gear had been retracted, but the nose gear might not have been fully retracted.
Conclusion
The source does not provide a probable cause for the occurrence.