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Casualties unknown

Aircraft Strikes Mountain During Turn While Showing Property (N8014Z)

Yampa, CO, US

On February 12, 1991, a Cessna U206 (registration N8014Z) operated by Dls Contractors, Inc. was involved in an aviation accident near Yampa, CO. Investigators recorded the probable cause as: INADVERTENT ACCELERATED STALL BY THE PILOT IN COMMAND WHILE ATTEMPTING A TURN IN CLOSE PROXIMITY TO TERRAIN. A FACTOR WAS THE HIGH ALTITUDE. 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

While showing mountain property to passengers at 10,600 feet, the pilot turned approximately 100 feet above terrain. The aircraft entered an accelerated stall and impacted a pine forest on a mountainside. The ELT activated but was not located for about 20 hours due to signal reflection.

Flight Details

A pilot was flying passengers to view mountain property for potential purchase. While maneuvering at an altitude of 10,600 feet MSL, the pilot attempted a turn at approximately 100 feet above mountainous terrain.

Accident Sequence

During the turn, the aircraft entered an accelerated stall. It subsequently impacted the side of a mountain, coming to rest in a pine forest.

Post-Crash

The aircraft's emergency locator transmitter (ELT) activated following the impact. However, due to reflection of the signal off the surrounding mountains, the crash site was not located for approximately 20 hours.

Loss of control in flight

Frequently asked questions

What happened in the 12 Feb 1991 Cessna U206 accident near Yampa, CO?

While showing mountain property to passengers at 10,600 feet, the pilot turned approximately 100 feet above terrain. The aircraft entered an accelerated stall and impacted a pine forest on a mountainside. The ELT activated but was not located for about 20 hours due to signal reflection.

What aircraft was involved and where did it happen?

The accident on 12 Feb 1991 involved a Cessna U206, registration N8014Z, operated by Dls Contractors, Inc., at Yampa, CO.

What was the probable cause of the accident?

INADVERTENT ACCELERATED STALL BY THE PILOT IN COMMAND WHILE ATTEMPTING A TURN IN CLOSE PROXIMITY TO TERRAIN. A FACTOR WAS THE HIGH ALTITUDE.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X16436. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.