Incident Overview
On 22 July 1965, a Jodel D-11 aircraft, registered as HB-SUY, was involved in an accident at the Wangen-Lachen airfield in Switzerland. The pilot was alone and had positioned the aircraft for a solo takeoff. With the engine running, the pilot removed the wheel chocks. Shortly after, the aircraft began to move forward and subsequently crashed into a ditch, resulting in some damage to the aircraft.
Sequence of Events
The pilot had prepared the aircraft for departure. After starting the engine, he proceeded to remove the wheel chocks. Once the chocks were removed, the aircraft started moving under its own power. It left the intended path and ended up in a ditch adjacent to the airfield. The impact caused damage to the aircraft.
Aircraft and Pilot Information
The aircraft involved was a Jodel D-11, bearing the Swiss registration HB-SUY. No other persons were aboard. The pilot was the sole occupant and was preparing for a solo flight. No further details about the pilot or the aircraft's maintenance history are provided in the report.
Investigation Findings
The investigation, conducted by the Swiss aircraft accident investigation commission, concluded that the aircraft moved forward after the wheel chocks were removed while the engine was running. This led to the aircraft entering a ditch and sustaining damage. No probable cause was explicitly stated in the report.