The cause of the accident was attributed to crew disorientation as a result of artificial horizon failure in low visibility conditions.

The weather forecast for the evening was cloudiness limiting visibility to 1,500 metres (1.5 km; 0.93 mi) at best with mild winds.

After takeoff the pilots reduced engine power and radioed the control tower for instructions to proceed.

Due to the damage to the aircraft caused by the crash, it was impossible to determine if the ailerons were functioning correctly at the time.

The board concluded that the crew demonstrated excellent calm in the emergency in their efforts to fly with incorrect data from the aircraft; weather was not determined to be a primary cause of the crash.