NTSB Accidents

The pilot’s inadequate preflight inspection, which did not detect a screw in the control yoke column, and his failure to confirm flight control continuity before takeoff.

The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering, which resulted in an aerodynamic stall/spin and loss of control.

The pilot’s failure to perform a preflight weight and balance calculation and his operation of the flight at an excessive takeoff weight, resulting in an exceedance of the airplane’s critical angle of attack after liftoff and an aerodynamic stall from which the pilot was unable to recover.

The pilot’s failure to maintain directional control during a touch-and-go landing after applying power for takeoff, which resulted in a runway excursion and noseover.

A total loss of engine power during cruise flight due to fuel starvation resulting from obstructed forward and aft vent outlets in the left fuel tank.

Inadequate maintenance of the airplane’s brake system that resulted in a hole in the brake line, the loss of brake fluid, and the subsequent loss of brake functionality.

The pilot’s improper leaning of the engine during an extended period of time, which caused an exhaust valve to become stuck and led to the partial loss of engine power during the accident flight. Contributing to the accident was the pilot’s decision to attempt a second takeoff without having the engine further examined.