Overview
An accident occurred when a pilot, after a failed starter engagement, manually rotated the propeller, inadvertently starting the engine. The airplane rolled forward and struck a parked, unoccupied aircraft.
Event Narrative
The pilot initially attempted to start the airplane using the starter, which did not engage. He then exited the airplane and rotated the propeller by hand. On the third rotation, the engine started, and the airplane began to roll forward. Before the pilot could shut down the engine, the airplane struck a parked, unoccupied aircraft.
Examination Findings
Subsequent examination of the magnetos, P-leads, and ignition switch showed no abnormalities. The starter switch functioned correctly, but the starter motor gear did not thrust forward to engage the engine ring gear.
Pilot Statement
The pilot stated that he did not intend to start the engine when he rotated the propeller. He noted that he felt rushed and "probably forgot" to turn the magnetos to the "off" position before exiting the airplane.