On July 11, 1987, a Champion 7GCAA (registration N9085L) was involved in an aviation accident near Bargaintown, NJ. Investigators recorded the probable cause as: The pilot's inability to maintain flight due to an unexplained loss of engine power during climb-out after banner pickup. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A light aircraft suffered a sudden loss of engine power shortly after takeoff and banner pickup, forcing the pilot to glide into trees near the runway.
What happened
The pilot reported that the aircraft experienced an inability to generate sufficient power to maintain flight during the climb-out phase. This event occurred immediately following a level-off period after completing a banner pickup operation. In response to the power loss, the pilot checked the carburetor heat and mixture settings but found no immediate resolution. The pilot then released the tow ropes and established a glide to attempt a safe landing. The aircraft ultimately settled into trees located approximately 200 feet beyond the runway end, resulting in damage to the airframe.
The investigation
A mechanical examination of the aircraft was conducted to determine the cause of the power failure. Investigators inspected the engine systems and related components for signs of malfunction or failure. Despite a thorough review of the operational parameters and mechanical state, no specific reason could be identified for the loss of power. The investigation concluded without finding a definitive mechanical fault that explained the event.
Probable cause
The pilot's inability to maintain flight due to an unexplained loss of engine power during climb-out after banner pickup.