What happened
During an instructional flight conducted under VFR conditions, the crew was performing a practice single-engine VOR approach to the airport. As part of the procedure, the right engine was set to zero thrust. The winds were reported as straight down runway 29.
After overflying the runway and circling to enter right traffic, the instructor decided to have the student perform a single-engine go-around. During this maneuver, the aircraft's airspeed was above Vmc. However, because the go-around command was issued at too low an altitude, the airplane touched down while the left engine was at full power. This caused the aircraft to veer to the right.
The aircraft became airborne again in a nose-high, yawing, and right-rolling attitude. The instructor subsequently assumed control and reduced power on the left engine. The aircraft then settled to the ground in a nose-high, yawed, and banked attitude. The impact caused the right main gear and nose gear to collapse, with the right main gear exiting the pavement.
Findings
The investigation determined that there were no mechanical malfunctions or system failures present in the aircraft. The instructor noted that during the early stages of the maneuver, neither the student nor the instructor provided sufficiently aggressive control inputs to correct the aircraft's attitude. Additionally, the instructor indicated he may have waited too long before taking control of the aircraft.