On February 6, 1986, a Piper PA-34-200 (registration N55654) was involved in an aviation accident near Bismarck, ND. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft descending from low ceiling made an abrupt left turn, then dropped to a near-vertical attitude and crashed into a vacant house trailer. Post-crash examination revealed clogged fuel injector nozzles and contamination in the left engine's fuel control unit.
Accident Overview
The aircraft was observed descending out of a low ceiling when it suddenly executed an abrupt left turn. The engine noise briefly increased, after which the nose of the aircraft dropped to a near-vertical position. The twin-engine aircraft then crashed into a vacant house trailer, resulting in the destruction of the aircraft.
Wreckage Examination
A subsequent examination of the wreckage revealed that two fuel injector nozzles on the left engine were clogged with foreign material. Additionally, contamination was found in the fuel control unit of the same engine. No other anomalies were reported in the source.