NTSB

Probable Cause: Failure of the right main landing gear due to prolonged corrosion of the landing gear tube, which weakened the gear.

Probable Cause: The partial loss of engine power due to maintenance personnel’s failure to ensure that the ignition harnesses were properly secured and the pilot’s inappropriate pitch control inputs, which resulted in the airplane exceeding its critical angle of attack and subsequently entering an aerodynamic stall.

Probable Cause: The pilot’s improper decision to attempt an intersection takeoff in a tailwind when the full runway in the opposite, headwind direction was available.

Probable Cause: The pilot’s inadequate fuel management, which resulted in fuel starvation and a forced landing.

Probable Cause: The failure of both pilots to see and avoid each other resulting in a collision on the airstrip. Contributing was the pilots’ failure to announce their intentions over their radios as they were taking off and landing.

Probable Cause: A total loss of engine power due to fuel starvation as a result of the pilot’s modifications to the fuel system. Contributing to the accident was the pilot’s decision to continue the takeoff despite observing lower than anticipated propeller rpm, his decision to delay his precautionary landing to allow another airplane to land, and his decision to conduct flight testing of the airplane following multiple modifications.

Probable Cause: The pilot’s exceedance of the airplane’s critical angle of attack during the takeoff, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover.

Probable Cause: The pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and loss of aircraft control.

Probable Cause: The stabilator trim rod assembly separated from the stabilator link assembly due to a missing connecting bolt, which resulted in the pilot’s inability to maintain pitch control of the airplane.