NTSB Identification: ANC07LA016
14 CFR Part 125: 20+ Pax,6000+ lbs
Accident occurred Wednesday, January 17, 2007 in Nenana, AK
Probable Cause Approval Date: 07/25/2007
Aircraft: Douglas C54G-DC, registration: N82FA
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The flight crew was delivering a cargo of fuel in the four-engine airplane under Title 14, CFR Part 125, when the airplane lost power in the number 2 engine. The captain elected to shut the engine down and return to the airport. He said during the shutdown procedure, the engine caught fire, and that the fire extinguishing system was activated. The crew thought the fire was out, but it erupted again, and the captain elected to land the airplane gear-up on the snow-covered tundra. Once on the ground, the left wing was consumed by fire. An inspection by company maintenance personnel revealed that an overhauled engine cylinder had failed at its base, resulting in a fire. The airplane was not examined by the NTSB due to its remote location.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The failure of an engine cylinder during cruise flight, which resulted in an in-flight fire, and subsequent emergency gear-up landing on snow-covered tundra. A factor in the accident was the failure of the fire suppression equipment to extinguish the fire.

Full narrative available

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