Casualties unknown

1985-08-13: Air Tractor AT301 (N8541S) — Oakley, KS

Oakley, KS, US

On August 13, 1985, an Air Tractor AT301 (registration N8541S) was involved in an aviation accident near Oakley, KS. Investigators recorded the probable cause as: The pilot's failure to ensure adequate fuel reserves for the agricultural operation and subsequent transit to the airport, resulting in fuel exhaustion. 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

N8541S collided with a fence while attempting a forced landing after the engine quit due to fuel exhaustion. The pilot had underestimated chemical application time and departed the work area critically low on fuel.

What happened

The aircraft, N8541S, was engaged in agricultural operations when it ultimately crashed following an attempt to execute a forced landing. According to the pilot's report, the flight phase involved dispensing a chemical load over a designated working area. The pilot indicated that the application process took longer than initially anticipated.

After completing the task, the pilot departed the working area and headed toward the airport. However, due to the extended time spent on the ground operations, the fuel supply was critically low at the time of departure. While en route, the aircraft traveled approximately 2.5 miles from the work site before the engine ceased operation. The cessation of power was attributed to fuel exhaustion. Unable to maintain altitude or reach the runway, the pilot attempted a forced landing in the vicinity. During this maneuver, the aircraft collided with a fence and subsequently crashed.

The investigation

The primary finding from the operational narrative is that the engine quit due to fuel exhaustion. No mechanical failure of the airframe or propulsion system prior to the fuel depletion was reported. The sequence of events was driven by the miscalculation of fuel requirements relative to the duration of the chemical application.

Findings

The accident was caused by the pilot's decision to depart the working area with insufficient fuel reserves. The critical factor was the underestimation of the time required to dispense the chemical load, which left the aircraft critically low on fuel before it could reach a safe landing site.

Probable cause

The pilot's failure to ensure adequate fuel reserves for the agricultural operation and subsequent transit to the airport, resulting in fuel exhaustion.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X37587. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.