Incident Details
A pilot reported that the engine would not start when the starter button was pressed. In response, the pilot decided to hand-prop the engine. After several attempts, the engine eventually started.
Sequence of Events
Immediately after starting, the engine's power increased abruptly. The aircraft jumped the chocks that were in place. A non-pilot passenger was at the controls at that time. The passenger was unable to stop the aircraft before it collided with a hangar.
Mechanical Assessment
No mechanical malfunctions or failures were reported in connection with the incident.
Injuries and Damage
The source does not specify any injuries or fatalities. Damage to the aircraft and hangar is implied by the collision, but no details are provided.