Accident description
Last updated: 1 November 2014
Status:
Date:Thursday 22 September 1966
Time:03:15
Type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas DC-4-1009
Operator:Avianca
Registration: HK-174
C/n / msn: 42929
First flight: 1946
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 2 / Occupants: 2
Airplane damage: Damaged beyond repair
Location:near Bogotá-Eldorado Airport (BOG) (   Colombia) show on map
Phase: Initial climb (ICL)
Nature:Cargo
Departure airport:Bogotá-Eldorado Airport (BOG/SKBO), Colombia
Destination airport:Barranquilla-Soledad Airport (BAQ/SKBQ), Colombia
Flightnumber: 870
Narrative:
The DC-4 struck trees past the end of runway 30 when the crew were attempting to return to the airport following engine trouble.

PROBABLE CAUSE: "Material failure consisting in fatigue failure of a number of teeth of the pinion of the governor control unit, which was jammed against the rack in the 'up' position and therefore set for maximum rpm, thus causing the engine to overspeed. This would be in keeping with the fact that the dome ring was at maximum low pitch setting, i.e. high rpm and a runway propeller on take-off.
Contributing factor: Faulty supervision by the Company. This consisted in briefing the pilot-in-command of the aircraft to make a night flight when he was not qualified for DC-4s, since he was still undergoing training for conversion to L-749."

Sources:


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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 Bogotá-Eldorado Airport to Barranquilla-Soledad Airport as the crow flies is 688 km (430 miles).

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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