What happened
The aircraft took off during nighttime hours characterized by low ceilings and reduced visibility. Shortly after leaving the ground, the airplane struck a nearby reservoir. Radar data analysis indicated that the aircraft was executing a descending turn with a bank angle of approximately 45 degrees at the time of impact.
The investigation
Examination of the wreckage found no evidence of powerplant failure or other system malfunctions prior to the crash. However, investigators noted that the Short-Arm Stabilizer (SAS) warning light was illuminated and the SAS switch was in the off position, with no mechanical fault detected for the system itself. The aircraft trim was set for level flight.
There was no cockpit voice recorder or flight data recorder installed on board. A review of air traffic control communications revealed that the captain remained on the radio while the first officer handled the flying duties. Witnesses reported that the captain had complained of illness before reporting for duty but proceeded anyway. Company records indicated previous instances of substandard performance by the first officer.
Findings
The investigation identified significant contributing factors beyond the immediate mechanical state of the aircraft. The captain's decision to fly while ill, combined with the first officer's documented history of inadequate performance, created a hazardous operational environment. Furthermore, the review highlighted deficiencies in company oversight regarding training and operations, as well as inadequate supervision by the Federal Aviation Administration.