Primary finding
Probable cause
The pilot’s improper installation of the aileron and flap control systems, which resulted in a loss of directional control during the takeoff roll and subsequent runway excursion.
Investigator assessment
Analysis narrative
The pilot reported that he had a “controllability issue” during takeoff and lost directional control. According to an FAA inspector, the airplane then veered right, exited the runway, and impacted a berm. Subsequently, the airplane had a post-crash fire and was destroyed. The pilot informed the FAA inspector that he improperly reconnected the ailerons and flaps prior to the accident flight. The pilot further reported that during the takeoff roll, the flight controls “felt funny” and realized that he had mis-rigged the aileron and flap controls. The pilot did not submit the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1 as requested.