Accident Overview
The aircraft experienced an engine malfunction shortly after departure. As it climbed through 400 feet, the engine sputtered and ceased operation. The pilot attempted to return to the departure runway but lost control. The aircraft stalled and descended uncontrolled, impacting trees and the ground.
Post-Crash Examination
Following the accident, investigators examined the engine and fuel system. The number 6 cylinder fuel injector nozzle contained uncontaminated water. Further inspection of the left wing fuel tanks and the fuel selector valve revealed that the drain plugs were rusted and difficult to remove.
Aircraft Storage History
The aircraft had been stored outdoors from August 1985 to February 1986. During that period, the fuel tanks were maintained at only half full.