Incident Overview
While flying at approximately 4,000 feet, the flight crew observed light icing on the windshield and activated the deicing system. After two cycles of operation, the smell of alcohol was detected in the cockpit, followed by smoke emanating from the control yoke. The crew initiated an emergency landing attempt at Providence, Rhode Island, but escalating smoke and flames compelled them to land on a reservoir covered with 10–12 inches of ice.
Emergency Landing
During the descent, heavy black smoke filled the cockpit, and fire became visible. Upon touchdown on the icy surface, the left main landing gear collapsed and the right wing was sheared off. The aircraft came to a stop on the reservoir.
Casualties and Damage
Eleven occupants escaped the aircraft and sustained injuries. One passenger was killed. The aircraft sustained substantial damage from the fire and impact.
Probable Cause
According to the official investigation, the probable cause was the deficient design of the isopropyl alcohol windshield washer/deicer system and the inadequate maintenance of the system, which resulted in an in-flight fire. The ignition source of the fire was not determined.