No fatalities

Dual Engine Failure Forces Belly Landing Short of Runway at Bristol-Tri-Cities Airport (N7700L)

Bristol-Tri-Cities, United States of AmericaLanding (descent or approach)

On September 19, 1978, a Piper PA-31-310 Navajo (registration N7700L) operated by Appalachian Flying Service was involved in an aviation accident near Bristol-Tri-Cities, United States of America during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Double engine failure due to fuel exhaustion, leading to a wheels-up landing on final approach. Contributing factors: mismanagement of fuel, inattention to fuel supply, fuel exhaustion, and a forced landing off airport on land. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 9 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the U.S. National Transportation Safety Board (NTSB) historical archive (1962-1981)Updated 2026-07-04Data APIEditorial standards

On final approach to runway 23, both engines failed due to fuel exhaustion. The pilot performed an emergency belly landing in a field 2,600 feet short, sustaining no injuries; the aircraft was destroyed.

Incident Details

During the final approach to runway 23 at Bristol-Tri-Cities Airport, both engines lost power simultaneously. The pilot initiated an emergency landing procedure, which resulted in the aircraft touching down on its belly in a field located approximately 2,600 feet before the runway threshold. The pilot, who was the sole occupant, was uninjured. The aircraft, however, sustained extensive damage and was deemed beyond repair.

Probable Cause and Contributing Factors

The official investigation determined that the dual engine failure was caused by fuel exhaustion. The subsequent wheels-up landing was a direct consequence of the power loss during the approach. Contributing factors identified in the report include mismanagement of fuel, inattention to fuel supply, and the necessity of a forced landing off airport terrain.

Frequently asked questions

What happened in the 19 Sept 1978 Piper PA-31-310 Navajo accident near Bristol-Tri-Cities, United States of America?

On final approach to runway 23, both engines failed due to fuel exhaustion. The pilot performed an emergency belly landing in a field 2,600 feet short, sustaining no injuries; the aircraft was destroyed.

Were there any fatalities in the 19 Sept 1978 Piper PA-31-310 Navajo accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 19 Sept 1978 involved a Piper PA-31-310 Navajo, registration N7700L, operated by Appalachian Flying Service, at Bristol-Tri-Cities, United States of America.

What was the probable cause of the accident?

Double engine failure due to fuel exhaustion, leading to a wheels-up landing on final approach. Contributing factors: mismanagement of fuel, inattention to fuel supply, fuel exhaustion, and a forced landing off airport on land.