On July 25, 1993, a Grumman G-164A (registration N8373) operated by Howell Cropdusters, Inc. was involved in an aviation accident near Ashford, AL. Investigators recorded the probable cause as: The failure of the supercharger assembly, which resulted in the loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During an aerial application maneuver, the aircraft experienced a sudden loss of power due to supercharger failure. The pilot attempted a forced landing but collided with a peach tree, causing significant structural damage to the airframe.
What happened
The incident occurred while the aircraft was engaged in an aerial application maneuver. During this operation, the engine suddenly lost power and ceased functioning. Shortly after the power loss, oil spray was observed on the windshield, indicating a potential internal mechanical failure.
Following the loss of power, the pilot initiated an attempt to execute a forced landing. However, during this descent, the aircraft collided with a peach tree. The impact resulted in substantial structural damage to the airframe.
The investigation
An examination of the incident revealed that the operator reported the supercharger assembly had failed. This mechanical failure was identified as the direct cause of the engine losing power and quitting during the maneuver.
Probable cause
The failure of the supercharger assembly, which resulted in the loss of engine power.