Narrative:The aircraft departed Cuiabá-Marechal Rondon Airport, at 06:21, for Porto Velho Airport with an IFR flight plan. At the outskirts of Barra do Bugres, about 30 minutes after takeoff, the aircraft turned back towards Cuiabá with its left engine on fire. While over Buracao, its left wing and engine broke away from the fuselage and it crashed to the ground out of control.
Probable Cause:
PROBABLE CAUSE: "The cause of the accident was a structural failure. Bolts of the No. 8 cylinder, left engine, fractured.
Contributing factors were defective fire detection and fire extinguishing systems."
Accident investigation:
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Investigating agency: | CENIPA Brazil |
Status: | Investigation completed |
Accident number: | final report | Download report: | Final report
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Classification:
Engine fire
Wing failure
Loss of control
Sources:
» ICAO Circular 88-AN/74 Volume I (171-174)
Photos
accident date:
12-08-1965type: Curtiss C-46A Commando
registration: PP-BTH
Map
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 Cuiabá-Marechal Rondon International Airport, MT to Porto Velho Airport, RO as the crow flies is 1141 km (713 miles).
Accident location: Approximate; accuracy within a few kilometers.
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.