Casualties unknown

Engine Power Loss Leads to Forced Landing in Desert Terrain (N5029D)

The Gap, AZ, US

On February 10, 2003, a Cessna 182A (registration N5029D) operated by Lottie K. Theut was involved in an aviation accident near The Gap, AZ. Investigators recorded the probable cause as: The cause of the nonmechanical loss of engine power was not determined. 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 cruise at 9,500 feet msl, all engine power was lost. The pilot performed a forced landing in soft desert terrain, resulting in an abrupt deceleration with nose-down attitude. Post-accident engine examination found no mechanical abnormality; cause remains undetermined.

Incident Overview

A pilot experienced a complete loss of engine power while cruising at 9,500 feet mean sea level (msl) after flying for 1.6 hours. The pilot executed a forced landing in soft desert terrain, during which the airplane abruptly decelerated in a nose-down attitude.

Pilot's Account

According to the pilot, the airplane's fuel tanks were full at the start of the flight. En route, the sky was clear of clouds. When the power loss occurred, the pilot reported a "slight shudder" and noticed that the engine sound dropped to idle. The pilot applied full carburetor heat, enriched the mixture, and repositioned the fuel selector to the "both tanks" position. Despite these actions, engine power was not restored, and the propeller continued rotating at idle speed throughout the forced landing.

Post-Accident Examination

The airplane's engine was examined after the incident. When run up to full power, no evidence of any mechanical abnormality was found.

Cause Determination

The cause of the nonmechanical loss of engine power was not determined.

Probable cause

The cause of the nonmechanical loss of engine power was not determined.

Frequently asked questions

What happened in the 10 Feb 2003 Cessna 182A accident near The Gap, AZ?

During cruise at 9,500 feet msl, all engine power was lost. The pilot performed a forced landing in soft desert terrain, resulting in an abrupt deceleration with nose-down attitude. Post-accident engine examination found no mechanical abnormality; cause remains undetermined.

What aircraft was involved and where did it happen?

The accident on 10 Feb 2003 involved a Cessna 182A, registration N5029D, operated by Lottie K. Theut, at The Gap, AZ.

What was the probable cause of the accident?

The cause of the nonmechanical loss of engine power was not determined.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20030215X00225. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.