Engine Fire During Start Sequence Leads to Evacuation

Casualties unknown • Chiriaco Summit, CA, US

A small aircraft was destroyed by fire during engine start after a backfire occurred. The pilot and passenger evacuated safely, with no mechanical defects found.

What happened

The incident occurred while the pilot was attempting to start the engine of the aircraft. After applying primer to the system, the pilot initiated the start sequence. Shortly thereafter, a backfire was heard from the engine compartment, followed immediately by flames emitting from the engine area.

Rather than aborting the attempt, the pilot continued with the engine start procedure. However, the fire intensified rapidly, becoming too excessive to manage safely on board. Consequently, both the pilot and the passenger were forced to evacuate the airplane immediately to ensure their safety.

The investigation

Following the incident, a post-accident examination of the wreckage was conducted by the Federal Aviation Administration accident coordinator. The inspection focused on identifying any potential mechanical failures that might have contributed to the fire. The examination revealed no mechanical malfunctions within the engine or related systems.

Probable cause

An engine fire that developed during the start sequence, which consumed the aircraft, with no evidence of pre-existing mechanical malfunction found during the post-accident inspection.

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Frequently asked questions

What happened in the 2007-04-07 Cessna 172 accident near Chiriaco Summit, CA?

A small aircraft was destroyed by fire during engine start after a backfire occurred. The pilot and passenger evacuated safely, with no mechanical defects found.

What aircraft was involved and where did it happen?

The accident on 2007-04-07 involved a Cessna 172, registration N8340B, operated by ON File, at Chiriaco Summit, CA.

What was the probable cause of the accident?

An engine fire that developed during the start sequence, which consumed the aircraft, with no evidence of pre-existing mechanical malfunction found during the post-accident inspection.

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.

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