Casualties unknown

1989-06-04: Champion 7GCBC (N7545F) — Robson, Ralph Gordon — Monticello, UT

Monticello, UT, US

On June 4, 1989, a Champion 7GCBC (registration N7545F) operated by Robson, Ralph Gordon was involved in an aviation accident near Monticello, UT. Investigators recorded the probable cause as: The pilot's failure to maintain adequate fuel supply, which resulted in fuel exhaustion and subsequent engine power loss. 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 1781061362Data APIEditorial standards

An aircraft experienced engine roughness followed by total power loss during climb-out. The pilot attempted a return but crashed on unprepared terrain, resulting in significant damage with no fuel remaining.

What happened

According to witness accounts, the aircraft exhibited signs of mechanical distress shortly after takeoff. As the plane was climbing, the engine began running roughly. However, this condition temporarily resolved when the pilot lowered the nose of the aircraft, allowing it to run normally for a brief period.

The pilot subsequently attempted to maneuver the aircraft back toward the airport. During this phase of flight, the engine lost power completely. Unable to maintain altitude or reach the airfield, the pilot executed a forced landing on unprepared terrain. The impact resulted in significant damage to the aircraft structure.

The investigation

Post-accident examination of the wreckage revealed critical details regarding the cause of the failure. Investigators found no fuel remaining in the aircraft's tanks after the accident occurred. Furthermore, there was no evidence of a fuel spill at the site, indicating that the fuel had been entirely consumed or exhausted prior to the crash.

Findings

The primary factor leading to this incident was the depletion of the fuel supply during flight. The initial rough running observed during climb-out was likely an early symptom of fuel starvation. The subsequent loss of power confirmed that the engine could not continue operation without a fuel source. The forced landing on unprepared terrain was a direct consequence of this mechanical failure.

Safety message

This incident highlights the critical importance of accurate pre-flight fuel planning and monitoring. Pilots must ensure sufficient fuel reserves are available for the entire flight, including contingencies for weather or routing changes. Regular checks of fuel quantity during flight are essential to prevent exhaustion.

Probable cause

The pilot's failure to maintain adequate fuel supply, which resulted in fuel exhaustion and subsequent engine power loss.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X28549. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.