On July 12, 1991, an Air Tractor AT-301 (registration N31691) operated by Third Districi Flying Service was involved in an aviation accident near Hawkinsville, GA. Investigators recorded the probable cause as: A COMPLETE LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. A FACTOR IN THIS ACCIDENT WAS: THE ROUGH, UNEVEN TERRAIN AT THE FORCED LANDING SITE. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An agricultural pilot experienced engine roughness during a spray pass; after shutting off the spray pump, the engine quit. A forced landing on a dirt road resulted in loss of directional control and collision with a ditch, causing substantial damage. No mechanical failure was found, and the engine ran after the accident.
Accident Sequence
An agricultural pilot was completing the final spray pass of a mission when the engine began to run roughly. The pilot pulled the aircraft up to shut off the spray pump, and shortly thereafter the engine ceased operating. Attempting to force land the airplane, the pilot selected a dirt farm road. Upon touchdown, the pilot was unable to maintain directional control due to the rough surface. The airplane subsequently collided with a ditch, resulting in substantial damage.
Post-Accident Examination
An FAA inspector visited the crash site and examined the wreckage. The aircraft was found to have an adequate amount of fuel on board. No evidence of a mechanical failure or malfunction could be identified during the examination. The engine was started after the accident and ran successfully.
Investigative Findings
The reason for the engine power loss could not be determined.