NTSB

Probable Cause: A loss of engine power due to the separation and ingestion of an air filter retaining bracket into the engine cylinder.

Probable Cause: The pilot’s failure to correctly reinstall the airplane’s left seat, resulting in the movement of the seat during the takeoff roll, and the subsequent loss of control and runway excursion.

Probable Cause: The pilot’s improper inflight fuel management, which resulted in a total loss of engine power due to fuel starvation while on final approach to land, and the subsequent hard landing, which resulted in separation of the airplane’s landing gear.

Probable Cause: The pilot’s improper preflight inspection of the stabilator trim position, which resulted in a porpoised landing. Contributing to the accident was the maintenance personnel’s improper maintenance of the stabilator trim shaft.

Probable Cause: The pilot’s failure to maintain airplane control during takeoff.

Probable Cause: The pilot’s loss of directional control in reduced visibility conditions due to a wind gust, which resulted in a collision with a trailer.

Probable Cause: The pilot’s failure to properly secure the left wing fuel cap, which resulted in a total loss of engine power due to fuel exhaustion.

Probable Cause: The failure of both pilots to see and avoid the other airplane while at low altitude enroute to their aerial application flights.