Incident Overview
During a training flight involving a practice single-engine approach, the student pilot reported that the airplane's descent rate was greater than anticipated, leading to an early touchdown. The flight instructor, seated in the right seat, instructed the student to execute a go-around. During the go-around, the student advanced the throttle for the right engine only.
Instructor's Account
The flight instructor stated that the student touched down during the landing flare but continued the flare, causing the airplane to become airborne again. Prior to gaining full control, the instructor noted that the student advanced the throttle for the right engine only, which caused the left wingtip to strike the runway.
Mechanical Status
Both flight crew members reported that there were no mechanical failures or malfunctions with the airplane or any of its systems prior to the accident.