Casualties unknown

Collision with Mountain After Engine Failure Due to Fuel System Error (N7933D)

Taos, NM, US

On December 23, 1983, a Beech H35 (registration N7933D) was involved in an aviation accident near Taos, NM. 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

A pilot forgot about a newly installed fuel system and accidentally turned the fuel selector off, causing engine failure. The engine restarted but the aircraft struck trees on a mountain at 10,500 ft.

Incident Description

The pilot of an aircraft reported that a new fuel system had recently been installed in Miami, Florida. While switching fuel tanks, the pilot forgot about the new system and inadvertently turned the fuel selector to the off position. The engine subsequently quit. Realizing the error, the pilot switched the selector back to a full tank. The engine had just restarted when the aircraft collided with trees at the 10,500-foot level of a mountain.

Pilot Background

The pilot held a private pilot's certificate with single-engine and multi-engine land ratings. That certificate had been revoked in 1981 due to Federal Aviation Regulations (FAR) violations.

Additional Findings

Following the accident, a small amount of cocaine and $19,200 in cash were found in the aircraft.

Frequently asked questions

What happened in the 23 Dec 1983 Beech H35 accident near Taos, NM?

A pilot forgot about a newly installed fuel system and accidentally turned the fuel selector off, causing engine failure. The engine restarted but the aircraft struck trees on a mountain at 10,500 ft.

What aircraft was involved and where did it happen?

The accident on 23 Dec 1983 involved a Beech H35, registration N7933D, at Taos, NM.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X45291. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.