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Last updated: 29 November 2021
Date:Thursday 12 August 1965
Time:ca 07:00
Type:Silhouette image of generic C46 model; specific model in this crash may look slightly different
Curtiss C-46A-50-CU Commando
Operator:Paraense Transportes Aéreos
Registration: PP-BTH
MSN: 30571
First flight: 1944
Total airframe hrs:27761
Engines: 2 Pratt & Whitney R-2800-51
Crew:Fatalities: 4 / Occupants: 4
Passengers:Fatalities: 9 / Occupants: 9
Total:Fatalities: 13 / Occupants: 13
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location:near Barra do Bugres, MT (   Brazil)
Phase: En route (ENR)
Nature:Domestic Scheduled Passenger
Departure airport:Cuiabá-Marechal Rondon International Airport, MT (CGB/SBCY), Brazil
Destination airport:Porto Velho Airport, RO (PVH/SBPV), Brazil
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."

Engine fire
Wing failure
Loss of control

» ICAO Circular 88-AN/74 Volume I (171-174)


photo of Curtiss-C-46A-Commando-PP-BTH
accident date: 12-08-1965
type: Curtiss C-46A Commando
registration: PP-BTH

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.

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Curtiss C-46

  • 3341 built
  • 931st loss
  • 241st fatal accident
  • 45th worst accident (at the time)
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  • 47th worst accident (at the time)
  • 81st worst accident (currently)
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