Aviation Accident Summaries

Aviation Accident Summary WPR18TA243

Kelso, WA, USA

Aircraft #1

N9031S

Beech 36

Analysis

The pilot reported that, while en route to the destination airport during the personal flight, the engine lost power. The pilot initiated a forced landing to a field, which resulted in substantial damage to the airplane. The pilot reported that there were no mechanical malfunctions or failures with the engine or airframe that would have precluded normal operation. A postaccident examination of the airplane revealed that the right fuel tank was empty, while the left fuel tank was full. The pilot stated that he did not remember switching fuel tanks during the flight and that, given that the right fuel tank was empty, he likely ran out of fuel.

Factual Information

On August 18, 2018, about 2130 Pacific daylight time, a Beech 36, N9031S, was substantially damaged when it was involved in an accident near Washington Regional Airport (KLS), Kelso, Washington. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. The pilot reported that he had filled both fuel tanks the night before the accident; he estimated that he had over three hours of fuel for the cross-country flight the following evening. While en route to the destination airport the engine lost power, which resulted in an off airport landing in a field. A postaccident onsite examination of the airplane by a Federal Aviation Administration inspector revealed that no visible fuel was observed in the right side fuel tank. He then sumped the tank and no fuel was expelled. When he performed a visual inspection of the left side fuel tank, it appeared to be full. The pilot subsequently stated that based on the evidence of the right fuel tank being empty, he probably ran out of fuel. The pilot also mentioned that he could not remember switching fuel tanks. The pilot reported that there were no mechanical anomalies with the engine or airframe that would have precluded normal operation.

Probable Cause and Findings

The pilot's fuel mismanagement, which led to fuel starvation, a total loss of engine power, and the subsequent forced landing to a field.

 

Source: NTSB Aviation Accident Database

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