20260507

Probable Cause: Insufficient lubrication of the engine’s internal components, which resulted in a total loss of engine power.

Probable Cause: The pilot’s failure to maintain control of the airplane during the takeoff and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and spin at low altitude. Contributing to the accident was the pilot’s lack of experience in the accident airplane make and model.

Probable Cause: The pilot’s inadequate preflight inspection, which resulted in an attempted departure with the flight control lock device installed, and subsequent nose landing gear collapse.

Probable Cause: A loss of engine power during initial climb due to fuel vapor lock. Contributing to the accident was the incorrect installation of the ancillary fuel supply system components.

Probable Cause: The pilot’s adjustment of the carburetor to an incorrect setting, which resulted in partial loss of engine power during takeoff.

Probable Cause: The commercial pilot’s failure to maintain directional control of the airplane during takeoff. Contributing was the student pilot’s application of brakes during the takeoff roll and the failure of both pilots to maintain a positive transfer of controls.

Probable Cause: The inability of the Boeing 75 pilot to anticipate that the Piper would stop earlier on the taxiway which resulted in the on-ground collision.