NTSB

Probable cause: The pilot’s failure to see and avoid the airplane stopped ahead of him during taxi.

Probable cause: The pilot’s inadequate preflight weather planning and in-flight weather evaluation, which resulted in an encounter with a strong cold front and the pilot’s subsequent loss of airplane control.

Probable cause: The pilot’s improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a runway excursion.

Probable cause: The pilot’s failure to maintain directional control of the airplane during landing in gusty crosswind conditions.

Probable cause: The pilot’s unstabilized approach and delayed application of full throttle for a go-around, which resulted in an uncontrolled descent.

Probable cause: The pilot’s improper pitch and power control during landing in a straight float-equipped airplane on grass in crosswind conditions, which resulted in a loss of directional control.

Probable cause: The pilot’s failure to maintain sufficient airspeed during the landing approach, which resulted in exceedance of the airplane’s critical angle of attack and an aerodynamic stall.

Probable cause: The Stearman pilot’s failure to maintain directional control during the landing roll and to see and avoid the airplane stopped on the edge of the runway.