Casualties unknown

Dual Engine Failure and Forced Landing After Cowl Flap Adjustment (N54738)

Charlotte, MI, US

On October 9, 1997, a Piper PA-23-250 (registration N54738) operated by Glenn Douglas Leonard was involved in an aviation accident near Charlotte, MI. Investigators recorded the probable cause as: improper positioning of the fuel selector by the second pilot, which resulted in fuel starvation; inadequate supervision by the pilot-in-command; and failure of the flight crew to follow the published emergency procedures for loss of engine power. 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 2026-06-10Data APIEditorial standards

Both engines lost power simultaneously after the co-pilot adjusted cowl flaps. The aircraft made a forced landing in a soybean field, colliding with trees. Investigators found fuel selectors in the OFF position post-accident.

Incident Overview

During a climb, at approximately 1,200 to 1,300 feet above ground level, the co-pilot began transitioning the aircraft from climb to cruise and initiated the closure of the cowl flaps. Shortly thereafter, both engines lost total power simultaneously.

Pilot Actions and Forced Landing

The pilot-in-command attempted to restart the engines by varying power lever positions, adjusting the mixture control, and turning the fuel pumps on and off. Unable to restore power, he decided to perform a forced landing in a soybean field. During the landing, the airplane touched down approximately 150 feet from the end of the field, slid across the bean field, and collided with trees before coming to rest.

Post-Accident Findings

Examination of the cockpit after the accident revealed that both fuel selectors were in the middle position, indicating 'OFF.' The cowl flap selectors were both in the full up and aft position, indicating 'OPEN.' Both pilots stated that the cowl flap selectors had been set to the 'OPEN' position during takeoff and climb. The co-pilot reported that he moved the cowl flap selectors to the middle, or 'trail' position, shortly before both engines failed. Neither pilot recalled touching the fuel selectors at any time after takeoff.

Pilot Statements

The left-seat pilot stated that before takeoff, the fuel selectors for both engines were set to the 'INBOARD' detents. The cowl flap selectors, located forward of the fuel selectors on the same floor-mounted console, were both set to the 'OPEN' positions.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08970. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.