What happened
During a daytime business flight conducted under visual meteorological conditions, a twin-engine turboprop aircraft departed for a cross-country trip. Shortly after the aircraft left the runway, it entered a left bank and began a descent. The aircraft subsequently struck terrain located approximately 0.5 miles from the runway threshold. The accident resulted in two fatalities. There was no fire following the impact, though fuel was noted at the crash site.
Findings
An inspection of the airframe following the accident showed no mechanical defects that would have prevented the aircraft from operating normally. Investigations into the propulsion systems revealed that the left engine was producing power at the time of the crash. While the right engine's compressor section was rotating upon impact, the condition of the power turbine disc assembly indicated that the right engine was not producing power during the collision. Extensive testing of the right engine's fuel control unit, fuel pump, and various governors found no malfunctions. Consequently, the specific reason for the loss of power in the right engine remains undetermined.