What happened
The pilot departed the airport while towing a glider. After successfully releasing the glider, the pilot returned to the airport for landing. During the approach, the pilot reported that the aircraft's wheels touched down on the runway twice before a third actual touchdown occurred.
Upon touchdown, the pilot described a smooth wheel landing with no bounces, noting that the aircraft rolled straight and smoothly on its two main wheels. As the landing progressed, the pilot felt the tail of the airplane begin to rise. In an attempt to maintain control, the pilot pulled back on the control stick but reported receiving no response from the elevator.
As a result of this lack of pitch control, the aircraft continued to roll forward until the spinner impacted the pavement. The aircraft then nosed over onto its back. At the time of the accident, the wind conditions were calm.
The investigation
Following the accident, investigators performed a functional test of the elevator control system. The testing revealed that the elevator operated effectively, and no mechanical abnormalities or discrepancies were observed in the control system.