On June 21, 2005, a S C Aerostar S A YAK-52 (registration N962KY) was involved in an aviation accident near Columbus, NE. Investigators recorded the probable cause as: The mechanic's inadequate installation of fuel lines, the obstruction of fuel lines, and the fuel starvation leading to the non-mechanical loss of engine power during approach and the unsuitable terrain the pilot encountered during the forced landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An experimental exhibition airplane sustained substantial damage during a forced landing after losing engine power on approach. Investigators found fuel line hoses 90% obstructed by interior rubber degradation.
Incident Overview
An experimental exhibition airplane was substantially damaged when it struck a ditch during a forced landing. The accident occurred on approach after the aircraft experienced an in-flight loss of engine power. The pilot executed a forced landing, but the airplane impacted rough terrain, resulting in significant structural damage.
Examination Findings
An on-scene examination of the fuel system revealed that the fuel lines were obstructed. Specifically, the interior of the affected hoses was approximately 90% plugged with degraded rubber from the hose material itself. The maintenance logbook indicated that these hoses had been replaced during the most recent annual condition inspection. The obstruction likely restricted fuel flow, leading to the loss of engine power.
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