Casualties unknown

Aerial Hunting Stall Leads to Crash During Coyote Pursuit (N91017)

Holden, UT, US

On October 10, 1996, a Piper PA-18-150 (registration N91017) was involved in an aviation accident near Holden, UT. Investigators recorded the probable cause as: The first pilot's failure to maintain adequate airspeed while maneuvering the airplane in close proximity to the ground. This subsequently led to an aerodynamic stall and uncontrolled descent into the ground. 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
Aircraft registered N91017
Aircraft registered N91017. Photo: Harley D. Nygren / Public domain, via Wikimedia Commons

During a low-level left turn while pursuing a coyote, an agency training aircraft stalled and crashed inverted. The aircraft was overweight and had unapproved modifications; no preimpact mechanical failure was found.

Accident Overview

A public-use airplane crashed during an aerial hunting operation after entering an aerodynamic stall while maneuvering at low altitude. The accident occurred as the aircraft was engaged in a coyote pursuit over an open field, with both pilots occupying the front and rear seats respectively.

Flight Maneuver and Stall

The first pilot, who was in the second phase of an agency training program, was banking the airplane to the left while flying in close proximity to the ground. The second pilot, serving as a part-time instructor pilot and gunner, was pointing a shotgun outside the airplane in an attempt to kill the running coyote as part of the agency's aerial hunting program. During the maneuver, the airplane aerodynamically stalled and entered an uncontrolled descent. It impacted the ground in a near-vertical, inverted attitude and was destroyed.

Aircraft Condition

An examination of the airframe and engine revealed no evidence of preimpact mechanical malfunctions. However, the airplane was about 75 pounds over its published maximum gross weight at the time of the accident. The density altitude was approximately 6,500 feet. Additionally, the investigation found unapproved modifications to the airplane and inadequate maintenance record keeping by the operator. The second pilot's throttle handle was not installed in the throttle control.

Frequently asked questions

What happened in the 10 Oct 1996 Piper PA-18-150 accident near Holden, UT?

During a low-level left turn while pursuing a coyote, an agency training aircraft stalled and crashed inverted. The aircraft was overweight and had unapproved modifications; no preimpact mechanical failure was found.

What aircraft was involved and where did it happen?

The accident on 10 Oct 1996 involved a Piper PA-18-150, registration N91017, at Holden, UT.

What was the probable cause of the accident?

The first pilot's failure to maintain adequate airspeed while maneuvering the airplane in close proximity to the ground. This subsequently led to an aerodynamic stall and uncontrolled descent into the ground. Factors contributing to the accident include the lack of adequate altitude to recover from the stall, the…

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X06971. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.