On June 6, 1993, a De Havilland DHC-6 Twin Otter (registration HK-2759) operated by Aerotaca Colombia - Aerotaxi Casanare was involved in an aviation accident near Yopal, Colombia during landing or approach. 2 people were killed. Investigators recorded the probable cause as: It was determined that the mountain was shrouded in light mist and the crew was approaching Yopal Airport below the minimum prescribed altitude for unknown reasons. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 2 related events involving the same aircraft type or operator are linked below.
A cargo flight from Bogotá to Yopal struck a mountain's slope 5 km from the runway during final approach in light mist, destroying the aircraft and killing both pilots.
Incident Summary
A cargo flight operating from Bogotá-El Dorado Airport to Yopal Airport collided with a mountain during its final approach. The aircraft struck the slope of a 900-meter-high mountain located approximately 5 kilometers from the runway threshold. The crew had failed to maintain sufficient altitude, and the aircraft was destroyed upon impact. Both pilots died in the accident. Weather conditions were described as good, but the mountain was covered in light mist.
Investigation
The official investigation into the accident concluded that the crew was approaching Yopal Airport at an altitude below the minimum prescribed descent altitude. The reason for this deviation was not determined. Additionally, the mountain was obscured by light mist.
Probable cause
It was determined that the mountain was shrouded in light mist and the crew was approaching Yopal Airport below the minimum prescribed altitude for unknown reasons.