Avianca Thursday September 22, 1966
The cargo plane struck trees at the end of the runway after trying to make an emergency landing. 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.