Casualties unknown

Engine Fire During Start Consumes Airplane (N8340B)

Chiriaco Summit, CA, US

On April 7, 2007, a Cessna 172 (registration N8340B) operated by ON File was involved in an aviation accident near Chiriaco Summit, CA. Investigators recorded the probable cause as: Engine fire during start-up for undetermined reasons. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 11 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

During engine start, a backfire led to flames from the engine. The pilot continued the start attempt until excessive flames forced evacuation. Post-accident examination found no mechanical malfunctions.

Incident Overview

The event unfolded during the engine start procedure. The pilot applied primer as part of the standard starting sequence. While starting the engine, a backfire was heard, and flames immediately emitted from the engine. Undeterred, the pilot continued the engine start attempt. The flames rapidly grew in intensity.

Evacuation and Destruction

As the fire intensified, it became too dangerous to remain in the airplane. The pilot and a passenger evacuated the aircraft. The fire quickly engulfed the entire airplane, resulting in its complete destruction. The aircraft was consumed by the fire, leaving only wreckage.

Post-Accident Findings

Following the incident, a Federal Aviation Administration accident coordinator examined the wreckage. The examination revealed no mechanical malfunctions. No issues with the aircraft's systems or components were identified.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070501X00489. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.