Casualties unknown

2000-06-04: Piper PA-20 (N7737K) — Quinault, WA

Quinault, WA, US

On June 4, 2000, a Piper PA-20 (registration N7737K) was involved in an aviation accident near Quinault, WA. Investigators recorded the probable cause as: The fuel selector detents were hard to feel, leading to inadvertent improper selector position that restricted fuel flow. 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

A pilot's difficulty feeling fuel selector detents led to an improper selection, engine failure, and a forced landing in a log-sorting yard, resulting in gear collapse.

Introduction

During a cruise flight, a pilot experienced an engine failure after switching fuel tanks. The subsequent forced landing in a commercial log-sorting yard resulted in the collapse of one main landing gear leg.

Sequence of Events

While in cruise flight, the pilot switched from an empty right tank to a full left tank. Due to the detents on the fuel selector valve being hard to feel, the pilot inadvertently placed the selector in a position that did not allow sufficient fuel flow to the engine to maintain power. The engine then quit.

Attempting to restart, the pilot repositioned the valve to the right tank, but the engine did not restart. The pilot then tried again to select the left tank but was unable to place the selector in the correct position. Another attempt to use the right tank also failed to restore fuel to the engine.

With no suitable landing area available, the pilot elected to attempt landing between stacks of logs in a commercial log-sorting yard. During the landing in the confined space, the main gear contacted the surface with enough force to cause one main gear leg to collapse.

Post-Accident Inspection

A post-accident inspection of the fuel selector determined that it functioned properly when in the correct position, but the alignment detents were hard to discern.

Probable cause

The fuel selector detents were hard to feel, leading to inadvertent improper selector position that restricted fuel flow.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X21329. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.