NTSB

Probable cause: The total loss of engine power due to the fuel pump’s fuel flow setting being set too high, which resulted in an excessive fuel flow to the engine.

Probable cause: A total loss of engine power for reasons that could not be determined because examination of the engine revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation.

Probable cause: The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power.

Probable cause: A loss of engine power for reasons that could not be determined based on the available information.

Probable cause: The pilot’s decision to take off with insufficient runway available and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.

Probable cause: Maintenance personnel’s failure to complete and verify the proper installation of the main landing gear (MLG) torque links’ attachment hardware, which resulted in the right MLG torque link disconnecting and the pilot’s subsequent inability to maintain directional control during the landing roll.

Probable cause: Spatial disorientation resulting in a loss of control during the missed approach conducted in instrument meteorological conditions. Contributing to the accident was the pilot’s decision to execute an instrument approach in weather conditions that were below the approach minimums.

Probable cause: The pilot’s improper decision to fly the airplane with a known engine problem and his improper modification of the engine control unit fuel delivery software, which led to the engine running too lean and resulted in a total loss of engine power during climb.

Probable cause: The student pilot’s failure to maintain runway alignment during takeoff, which resulted in an aborted takeoff and runway excursion.