Casualties unknown

Forced Landing Due to Fuel Contamination (N4863R)

Olton, TX, US

On August 17, 1984, a Cessna A188B (registration N4863R) was involved in an aviation accident near Olton, TX. Investigators recorded the probable cause as: The pilot's failure to ensure adequate fuel quality prior to flight, evidenced by six ounces of water found in the fuel strainer, which resulted in a total loss of power during takeoff. 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 2026-06-10Data APIEditorial standards

A pilot was forced to land in a field after experiencing a loss of power during takeoff. Investigation revealed water contamination in the fuel system.

What happened

The aircraft experienced a total loss of engine power while climbing out during the initial phase of takeoff. Unable to maintain altitude, the pilot executed an emergency forced landing in an adjacent field. During this maneuver, the aircraft struck a ditch, resulting in substantial structural damage. The impact caused the right wing and the right main landing gear assembly to separate completely from the airframe.

The investigation

A post-accident examination of the aircraft revealed significant evidence regarding the cause of the power failure. Inspectors found that the left fuel tank was entirely empty. Furthermore, no fuel was detected in the lines leading to the engine, indicating a complete interruption of the fuel supply during the critical climb phase.

Findings

Analysis of the fuel strainer provided the definitive explanation for the event. A total of eight ounces of fluid were drained from the strainer. This fluid consisted of two ounces of usable fuel and six ounces of water. The presence of this water volume indicates severe fuel contamination, which likely caused the engine to flame out due to lack of combustible mixture.

Probable cause

The pilot's failure to ensure adequate fuel quality prior to flight, evidenced by six ounces of water found in the fuel strainer, which resulted in a total loss of power during takeoff.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X40723. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.