Casualties unknown

Aircraft Collides with Navaho Mountain During Night Flight (N1939M)

Glen Canyon, UT, US

On September 18, 1984, a Cessna 182P (registration N1939M) was involved in an aviation accident near Glen Canyon, UT. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

An aircraft crashed into Navaho Mountain at approximately 9800 feet while en route to Farmington, New Mexico. The pilot, a 67-year-old former WWII bomber pilot with limited night experience, appeared confused during radio communications.

Accident Summary

On the evening of the accident, an aircraft struck Navaho Mountain at about the 9,800-foot level. The mountain has an elevation of 10,388 feet. The impact occurred at 2027 Mountain Daylight Time (MDT). The aircraft had departed Hayward, California, at 1351 MDT and was en route to Farmington, New Mexico.

Pilot Information

The pilot was a 67-year-old male who had served as a bomber pilot during World War II. According to investigators, he was described as overweight, a heavy smoker, under great pressure, and easily upset. He had never flown this route before. His night flying and instrument experience were limited. During radio communications, the pilot seemed confused.

Environmental Conditions

There was no moon that evening. Scattered and isolated thunderstorms were present in the area at the time of the accident.

Flight Details

The flight departed Hayward, California, at 1351 MDT. The planned destination was Farmington, New Mexico. The aircraft struck the mountain at 2027 MDT. No further details about the aircraft or occupants are available from the source.

Frequently asked questions

What happened in the 18 Sept 1984 Cessna 182P accident near Glen Canyon, UT?

An aircraft crashed into Navaho Mountain at approximately 9800 feet while en route to Farmington, New Mexico. The pilot, a 67-year-old former WWII bomber pilot with limited night experience, appeared confused during radio communications.

What aircraft was involved and where did it happen?

The accident on 18 Sept 1984 involved a Cessna 182P, registration N1939M, at Glen Canyon, UT.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X41028. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.