Casualties unknown

Light aircraft crashes into hillside during wildlife survey (N5943J)

Wenden, AZ, US

On February 6, 1983, a Cessna 182P (registration N5943J) operated by David L. Armstronga was involved in an aviation accident near Wenden, AZ. Investigators recorded the probable cause as: The pilot's inadequate planning and decision-making during a low-altitude survey, specifically a steep turn toward rising terrain while following bighorn sheep, which resulted in controlled flight into terrain. 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 2026-06-23Data APIEditorial standards

An aircraft crashed into a hillside while conducting aerial surveys of bighorn sheep. The pilot made a steep turn to follow the herd, resulting in controlled flight into terrain with no mechanical failure found.

What happened

The aircraft was engaged in an aerial survey operation when it collided with rising terrain during a low-altitude maneuver. The pilot, seated in the right front position and actively flying the aircraft, executed a steep right turn to maintain visual contact with a herd of bighorn sheep. During this maneuver, the aircraft descended into the upward-sloping ground, resulting in a crash.

The investigation

Following the accident, investigators conducted a post-accident examination of the wreckage and remaining aircraft systems. The inspection focused on identifying any potential mechanical issues that might have contributed to the loss of control or altitude. No evidence of pre-impact failure of the aircraft equipment was found during this process.

Findings

The primary factor in this accident was the pilot's decision to perform a steep turn at low altitude while tracking wildlife. The combination of the tight maneuver and the rising terrain left insufficient clearance, leading to controlled flight into terrain. Mechanical integrity of the aircraft was confirmed prior to impact.

Probable cause

The pilot's inadequate planning and decision-making during a low-altitude survey, specifically a steep turn toward rising terrain while following bighorn sheep, which resulted in controlled flight into terrain.

Frequently asked questions

What happened in the 6 Feb 1983 Cessna 182P accident near Wenden, AZ?

An aircraft crashed into a hillside while conducting aerial surveys of bighorn sheep. The pilot made a steep turn to follow the herd, resulting in controlled flight into terrain with no mechanical failure found.

What aircraft was involved and where did it happen?

The accident on 6 Feb 1983 involved a Cessna 182P, registration N5943J, operated by David L. Armstronga, at Wenden, AZ.

What was the probable cause of the accident?

The pilot's inadequate planning and decision-making during a low-altitude survey, specifically a steep turn toward rising terrain while following bighorn sheep, which resulted in controlled flight into terrain.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X42223. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.