Incident Overview
An ATP-rated certified flight instructor (CFI) was conducting a rental checkout with a private pilot. During the session, the check pilot instructed the pilot to perform a landing and, if sufficient runway remained, to execute another takeoff. The pilot completed a landing on runway 8R, which is a 4,100-foot-long by 75-foot-wide asphalt runway.
Sequence of Events
The check pilot had been following through on the controls throughout the landing. However, during the landing roll, he released his grip on the controls and waited for the pilot to bring the airplane to a stop. According to the check pilot, as soon as he removed his hands from the controls, the control stick moved forward and he heard the engine speed up. Subsequently, the airplane swerved to the left.
The check pilot took control of the airplane and attempted to correct the swerve, but his efforts were unsuccessful. The airplane then struck a snow drift located on the left side of the runway and nosed over.
Additional Details
No further information regarding the aircraft, occupants, or extent of damage is provided in the source. The runway conditions, time of day, and weather were not specified. The source does not include any analysis or determination of probable cause.