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Fatal aircraft impact on Mount Saguancancha (OB-R-577)

Mt Saguancancha, PeruFlight

On March 18, 1965, a Curtiss C-46 Commando (registration OB-R-577) operated by Servicio Aéreo de Transportes Comerciales - SATCO was involved in an aviation accident near Mt Saguancancha, Peru in flight. 9 people were killed. Investigators recorded the probable cause as: The aircraft struck terrain during cruise flight while operating in low-visibility conditions. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 1 related events involving the same aircraft type or operator are linked below.

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

An aircraft crashed into a mountain slope during cruise flight, resulting in the deaths of all nine people on board.

What happened

During a period characterized by restricted visibility, an aircraft was performing cruise flight when it collided with the terrain at the slope of Mt Saguancancha. Following the impact, search teams located the wreckage several hours after the event occurred.

There were nine fatalities recorded in the accident, as all occupants on board the aircraft perished during the collision. No survivors were reported from the site.

Findings

  • The flight was operating under conditions of limited visibility at the time of the impact.
  • The aircraft struck the side of a mountain slope while in the cruise phase of flight.

Probable cause

The aircraft struck terrain during cruise flight while operating in low-visibility conditions.

Related events

Same operator

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