Casualties unknown

Aircraft Struck Ground During Takeoff Climb at Kayenta After Maintaining Low Airspeed (N65963)

Kayenta, AZ, US

On August 14, 1996, a Cessna 172Q (registration N65963) operated by Cothron Aviation was involved in an aviation accident near Kayenta, AZ. Investigators recorded the probable cause as: the pilot's failure to adhere to the manufacturer's performance data by not maintaining the recommended best rate of climb speed, resulting in an inadvertent stall/mush event. The high density altitude was a related factor. 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

During takeoff from Kayenta, the pilot maintained 40-45 knots IAS, but the aircraft would not climb. After lowering the nose to gain airspeed and maneuvering around a power plant, the aircraft struck the ground. Density altitude was 9,000 feet.

Accident Summary

A pilot reported that after refueling at Grand Canyon airport and flying to Kayenta, the aircraft experienced a loss of performance during the initial climb from Kayenta. The pilot maintained an indicated airspeed between 40 and 45 knots but found that the aircraft would not climb. In an effort to increase airspeed, the pilot lowered the nose. While maneuvering to avoid a power plant, the aircraft struck the ground.

Flight History

The pilot had refueled the aircraft at Grand Canyon airport before proceeding to Kayenta. The takeoff and initial climb from Kayenta were conducted at a density altitude of about 9,000 feet. The pilot noted that despite maintaining 40 to 45 knots indicated airspeed, the aircraft failed to climb. After lowering the nose, the pilot had to navigate around a power plant, during which the aircraft impacted the terrain.

Aircraft and Performance Data

Available data indicated that at the airplane's estimated takeoff gross weight, the stall speed was approximately 43 knots indicated airspeed (about 57 knots calibrated airspeed). The density altitude at the time of the incident was approximately 9,000 feet.

Frequently asked questions

What happened in the 14 Aug 1996 Cessna 172Q accident near Kayenta, AZ?

During takeoff from Kayenta, the pilot maintained 40-45 knots IAS, but the aircraft would not climb. After lowering the nose to gain airspeed and maneuvering around a power plant, the aircraft struck the ground. Density altitude was 9,000 feet.

What aircraft was involved and where did it happen?

The accident on 14 Aug 1996 involved a Cessna 172Q, registration N65963, operated by Cothron Aviation, at Kayenta, AZ.

What was the probable cause of the accident?

the pilot's failure to adhere to the manufacturer's performance data by not maintaining the recommended best rate of climb speed, resulting in an inadvertent stall/mush event. The high density altitude was a related factor.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X06553. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.