Accident Description
The aircraft impacted the ground in a 90-degree bank with the nose down approximately 20 degrees. Prior to the impact, the aircraft had been observed performing a series of low-altitude dives and climbs. On the final climb over a tree line, a witness reported seeing a wing suddenly drop, after which the aircraft disappeared behind the trees.
Pilot Information
The pilot was a flight instructor who had taken the aircraft solo for local practice flying. The flight began only a few minutes before the accident occurred.
Investigation Findings
Investigators examined the wreckage and found no mechanical or physical anomalies that were considered causal in nature. No contributing factors related to the airframe, engine, or systems were identified. The investigation did not determine a specific reason for the loss of control.
Sequence of Events
The pilot departed for a local practice flight. Witnesses observed the aircraft making repeated low-altitude maneuvers, including steep climbs and dives. During the final climb, as the aircraft rose above the trees, one wing dropped abruptly. The aircraft then descended behind the tree line and impacted the ground at a steep bank angle and nose-down attitude. The impact marks and wreckage distribution were consistent with the witnessed maneuver.