12 fatalities

Mountain Collision Involving a Twin-Engine Turboprop (NC45395)

Mt Cuyapaipe, United States of AmericaFlight

On December 24, 1946, a Douglas DC-3 (registration NC45395) operated by Western Airlines was involved in an aviation accident near Mt Cuyapaipe, United States of America in flight. 12 people were killed. Investigators recorded the probable cause as: The accident was caused by conducting the flight at an altitude that did not provide adequate clearance from obstructions, stemming from a pilot error in determining the aircraft's position relative to Laguna Mountain. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

A twin-engine turboprop struck the east slope of Mt Cuyapaipe while descending from 7,000 feet, resulting in the destruction of the aircraft and the deaths of all 12 people on board.

What happened

During cruise at an altitude of 7,000 feet, the flight crew communicated with air traffic control to confirm that they had just overflown Mt Laguna. Following this report, the pilot initiated a descent. As the aircraft lowered its altitude to approximately 6,120 feet, it collided with the eastern slope of Mt Cuyapaipe.

The impact forces and subsequent post-crash fire destroyed the airframe. The wreckage was located 75 feet below the mountain's summit. All 12 occupants perished in the accident.

Findings

Investigations concluded that the collision resulted from a navigational error. Specifically, the pilot miscalculated the aircraft's position relative to Laguna Mountain. This misjudgment led to the flight being conducted at an altitude insufficient to clear the terrain obstructions.

Probable cause

The accident was caused by conducting the flight at an altitude that did not provide adequate clearance from obstructions, stemming from a pilot error in determining the aircraft's position relative to Laguna Mountain.