Primary finding
Probable cause
The pilot's improper operation of the airplane controls during engine start, which resulted in a collision with a hangar.
Investigator assessment
Analysis narrative
The pilot started the airplane without the hand-brake set, and the airplane began to move forward. The pilot stated that he pushed the throttle "in" and at the same time reached for the hand-brake in an attempt to stop the airplane. The throttle input increased engine power, and the airplane rolled forward until it collided with a hanger. The airplane’s wings were substantially damaged. A postaccident examination of the airplane found the throttle in the full forward (full power) position. No preimpact mechanical malfunctions or failures with the airplane were reported.
Source record
Factual narrative
The pilot started the airplane without the parking park set. When the airplane's engine was started the airplane began to move forward. The pilot stated that he pushed the throttle "in" and at the same time reached for the hand-brake in an attempt to stop the airplane. The throttle input increased engine power and the airplane rolled forward until it collided with a hanger. The airplane’s wings were substantially damaged. A postaccident examination of the airplane found the throttle in the full forward (full power) position. No preimpact anomalies were detected with the airplane.