On December 7, 1984, a Beech A36 (registration N6052M) was involved in an aviation accident near Salinas, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During a preflight walk-around, a pilot hand-turned a propeller to loosen oil, inadvertently starting the engine at full power. The unoccupied aircraft then taxied across the ramp, colliding with two hangars and another aircraft.
Incident Details
During a preflight walk-around, the pilot was inspecting the propeller for nicks. The pilot decided to turn the propeller by hand to 'loosen the oil and coat cylinder walls,' assuming that the power plant controls were off and secure. The engine started at full power, and the unoccupied aircraft taxied across the ramp. It subsequently collided with two T-hangars and another aircraft.
Investigation Findings
Investigation revealed that the throttle was set at full power. The magnetos were found in the 'off' position. A bench test of the magnetos disclosed no mechanical or electrical discrepancies.