What happened
During a flight instruction and recurrent training session, a flight instructor was seated in the right seat of an aircraft that had been converted from a wheel configuration to a tailwheel configuration. The private pilot was operating the aircraft from the left seat. Prior to the accident, the pilot had successfully completed two stop-and-go landings.
On the third landing attempt, while rolling on a dry paved runway, the pilot allowed the aircraft to veer slightly to the left of the runway centerline. In an attempt to correct the deviation, the flight instructor applied right rudder. Simultaneously, the private pilot applied heavy braking, which caused both wheels to lock. This resulted in a noseover of the aircraft.
The investigation
The aircraft sustained substantial damage to its wings, fuselage, and empennage. During the review of the event, the flight instructor reported that there were no mechanical anomalies present with the aircraft prior to the accident.