On February 7, 2004, a Cessna 150F (registration N8745S) was involved in an aviation accident near Suffolk, VA. Investigators recorded the probable cause as: The number four cylinder barrel failed due to fatigue originating from a corrosion pit, resulting in a total loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An airplane experienced a total loss of engine power during climb, forcing a landing in wooded terrain. Investigation revealed that the number four cylinder barrel failed due to fatigue originating from a corrosion pit.
Accident Narrative
During climb from an airport, the airplane's engine lost all power. The pilot executed a forced landing into a wooded area. The aircraft collided with trees and subsequently descended to the ground.
Investigation
Post-accident examination of the engine revealed that the number four cylinder had separated at the midpoint of the barrel. Further analysis of the cylinder determined that the barrel failed due to fatigue, with the fatigue crack originating from a corrosion pit. The engine had been overhauled in September 1994, which included the installation of the number four cylinder. At the time of the accident, the engine had accumulated approximately 800 hours of total operation since that overhaul.
Probable cause
The number four cylinder barrel failed due to fatigue originating from a corrosion pit, resulting in a total loss of engine power.