Casualties unknown

1993-05-13: Robinson R-22B (N14NH) — Air Photo, Inc. — Cody, WY

Cody, WY, US

On May 13, 1993, a Robinson R-22B (registration N14NH) operated by Air Photo, Inc. was involved in an aviation accident near Cody, WY. Investigators recorded the probable cause as: THE FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL WHILE HOVERING. FACTORS RELATING TO THE ACCIDENT WERE THE IMPROPER DECISION BY THE PILOT, IMPROPER TOUCHDOWN POINT SELECTION, HIGH DENSITY ALTITUDE, AND WIND GUSTS. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

After crossing a mountain pass with maximum power and reaching maximum oil temperature, the pilot conducted a precautionary landing. During hover taxi, a gust of wind caused loss of directional control and rotor RPM, leading to an uncontrolled descent.

Incident Details

The pilot used maximum power to fly over a mountain pass. After crossing the summit, the oil temperature reached the maximum for normal operation, prompting the pilot to decide on a precautionary landing.

Approach and Landing Attempt

The pilot made an approach to an out-of-ground-effect (OGE) hover, then flew a traffic pattern for landing. He approached to a hover and elected to hover taxi to a suitable landing site. During the hover taxi, the aircraft encountered a gust of wind, resulting in a loss of directional control.

Loss of Control and Impact

Following the loss of directional control, the aircraft lost rotor RPM, descended uncontrollably, and impacted the ground. The density altitude at the site was approximately 9,380 feet.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X12474. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.