On November 6, 1983, a Piper 601P (registration N9774Q) operated by Paul M. Guyer was involved in an aviation accident near Helendale, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During cruise flight, the right engine manifold pressure dropped to zero. The pilot feathered the engine and attempted single-engine performance, but the aircraft descended. After overflying suitable airports, it landed in an alfalfa field. Examination revealed fire damage to ignition wiring and turbocharger components.
Engine Failure
During cruise flight, the right engine manifold pressure fell to zero. The pilot feathered the engine and configured the aircraft for single-engine performance; however, the aircraft continued to descend.
Descent and Landing
During the descent, the pilot flew over several suitable airports. The aircraft ultimately landed in an alfalfa field.
Post-Incident Examination
Examination of the right engine revealed severe fire damage to the ignition wiring harness and both magneto 'P' leads were shorted. An oil vent hose routed on the outboard side of the inboard turbocharger also displayed severe heat damage. The outer layer of a heat shield attached to the turbocharger was found torn open, and the heat-resistant material was pushed aside or missing from an area approximately one inch square. According to the Hobbs meter, the right engine and overhauled turbochargers had been installed approximately nine hours prior to the incident.