Aircraft: Cessna 182. Injuries: 1 Serious. Location: Eastsound, Wash. Aircraft damage: Substantial.
What reportedly happened: The pilot pulled the airplane out of the unheated hangar on a cold morning. He pulled the propeller through its rotation arc several times, then set the parking brake. When attempts to start the plane with the starter were unsuccessful, he determined that the battery did not have a sufficient charge to start the engine, so he decided to start the airplane by hand-propping.
He primed the engine, set the throttle to idle, turned on the master switch and magneto switches, then spun the propeller. The engine started, then quit.
He repeated the procedure, advancing the throttle to keep it running, but the engine quit again. He then applied carburetor heat, but did not reduce the throttle setting.
He hand-propped the engine once again and this time it remained running and the airplane moved forward. The pilot fell and was seriously hurt when he attempted to get to the cockpit to reduce the throttle.
The unoccupied airplane continued to roll until it smashed into a hangar.
Probable cause: The pilot’s failure to properly secure the airplane prior to rotating the propeller by hand, resulting in inadvertent movement of the airplane and collision with a building.
NTSB Identification: WPR11CA118
This February 2011 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.