Accident Overview
A Cessna 205 collided with terrain at the departure end of the runway. The aircraft was witnessed to begin its takeoff roll from the runway threshold. During the initial takeoff climb, the airplane attained a nose-up attitude of approximately 45 degrees, subsequently stalled, and entered a spin that continued until impact with the ground.
Takeoff Details
Witnesses observed the airplane start its takeoff roll from the threshold of the runway. After liftoff, the airplane climbed at a steep 45-degree nose-up attitude. This unusual pitch attitude led to an aerodynamic stall, and the airplane then entered a spin, descending rapidly to the ground.
Aircraft Examination
Examination of the wreckage revealed that the left front seat was equipped with an aftermarket mechanical seat stop installed on the seat floor rail. Investigators found no evidence of mechanical failure or malfunction with the airplane, including no indications that the pilot's seat had slid during the takeoff rotation.