17 fatalities

1950s Salt Lake City Approach Accident: Terrain Impact and Total Loss (NC18146)

Salt Lake City, United States of AmericaLanding (descent or approach)

On May 1, 1942, a Douglas DC-3 (registration NC18146) operated by United Airlines was involved in an aviation accident near Salt Lake City, United States of America during landing or approach. 17 people were killed. Investigators recorded the probable cause as: The accident was caused by a deviation from the proper course for reasons undetermined after the aircraft became off contact within ten miles of the airport. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Source recordUpdated 2026-08-05Data APIEditorial standards

An aircraft deviated from its approach path during a night descent in limited visibility, impacting hilly terrain six kilometers from the runway. The crash resulted in the destruction of the plane and the deaths of all 17 people on board.

What happened

The incident occurred during a nighttime descent to Salt Lake City Airport under conditions of limited visibility caused by marginal weather. As the aircraft proceeded on final approach, the crew failed to detect that the airplane had strayed from the correct flight path. The deviation led to a collision with the slope of hilly terrain located approximately 6 km from the runway threshold. The impact destroyed the airframe completely. All 17 occupants of the aircraft were killed in the accident.

Findings

The Civil Aeronautic Board investigated the event and determined that the primary issue was a navigational error by the crew. At the time of the crash, the aircraft had deviated from its initial track. The investigation noted that the flight had lost contact with air traffic control within ten miles of the airport. Despite reviewing the available record, the board was unable to establish the exact reason for the deviation from the proper course. Consequently, the official finding attributed the accident to a deviation from the proper course for reasons undetermined.

Probable cause

The accident was caused by a deviation from the proper course for reasons undetermined after the aircraft became off contact within ten miles of the airport.