4 fatalities

Aircraft Strikes Mount Huayna During Approach to Tipuani, Four Killed (CP-680)

Tipuani, BoliviaLanding (descent or approach)

On August 22, 1964, a Douglas C-47 Skytrain (DC-3) (registration CP-680) operated by Servicios Aéreos Cochabamba was involved in an aviation accident near Tipuani, Bolivia during landing or approach. 4 people were killed. Investigators recorded the probable cause as: The flight was conducted in IMC conditions at an altitude unsafe for operations of that nature through the Huayna Pass. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

During approach to Tipuani in marginal weather, the aircraft descended too low and struck Mount Huayna, killing all four occupants. The flight had been delayed by bad weather. Investigators cited flight in IMC at unsafe altitude.

Incident

While on approach to Tipuani, the crew faced marginal weather conditions with reduced visibility. The aircraft descended too low and collided with the northern slope of Mount Huayna, situated a few kilometers from the airport. All four individuals aboard perished in the accident.

Background

The flight was delayed because of poor weather conditions both over the Cordillera mountain range and at the destination, Tipuani.

Official Findings

Investigators determined that the probable cause was that the flight was conducted in instrument meteorological conditions (IMC) at an altitude that was unsafe for such operations through the Huayna Pass.