Narrative:

Ran up engine after oil change; set brakes and departed aircraft with engine still running to check for any oil leaks. When stepping off of the wing the airplane took off at a high rate of speed and collided with hangar approximately 75 yards away resulting in damage to both wings and the propeller.

Google
 

Original NASA ASRS Text

Title: General Aviation pilot reports performing an oil change on his aircraft then leaving the cockpit with the engine running and the parking brake set to check for oil leaks. The brake does not hold and the aircraft runs into a hangar.

Narrative: Ran up engine after oil change; set brakes and departed aircraft with engine still running to check for any oil leaks. When stepping off of the wing the airplane took off at a high rate of speed and collided with hangar approximately 75 yards away resulting in damage to both wings and the propeller.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.