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Date:Tuesday 14 July 1981
Type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas SC-54G (DC-4)
Operator:Aero Union
Registration: N3373F
MSN: 36061
First flight: 1945
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 1 / Occupants: 1
Total:Fatalities: 3 / Occupants: 3
Aircraft damage: Damaged beyond repair
Location:6 km (3.8 mls) S of Kenai Airport, AK (ENA) (   United States of America)
Phase: Approach (APR)
Departure airport:Kenai Airport, AK (ENA/PAEN), United States of America
Destination airport:King Salmon Airport, AK (AKN/PAKN), United States of America
While flying at 2000 feet, a catastrophic failure of the no. 2 cylinder caused a no. 1 engine fire. A massive fire of the outboard part of the left wing led to the separation of this part while returning to the airport.

Probable Cause:

powerplant - engine structure: cylinder assembly
miscellaneous acts,conditions - material failure
powerplant - propeller and accessories: other
miscellaneous acts,conditions - overload failure
miscellaneous acts,conditions - fire in engine
miscellaneous acts,conditions - fire in wing
miscellaneous acts,conditions - separation in flight
complete power loss - complete engine failure/flameout-1 engine

Engine fire
Loss of control



photo of Douglas-SC-54G-N3373F
accident date: 14-07-1981
type: Douglas SC-54G
registration: N3373F
photo of Douglas-SC-54G-N3373F
accident date: 14-07-1981
type: Douglas SC-54G
registration: N3373F

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Kenai Airport, AK to King Salmon Airport, AK as the crow flies is 367 km (229 miles).
Accident location: Exact; deduced from official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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