Accident Overview
On a descent into Columbus, the pilot of a Beechcraft King Air encountered poor weather conditions with thunderstorm activity. While flying in clouds, the pilot experienced spatial disorientation and lost control of the airplane. The aircraft entered a dive and, due to overload failure, the horizontal stabilizers and wings failed. The airplane crashed in a field and burst into flames. The pilot, the sole occupant, was killed.
Circumstances
The flight was conducted as a prearranged IFR information flight. During the descent, the pilot faced deteriorating weather, including thunderstorms. Spatial disorientation occurred while the aircraft was in cloud, causing the pilot to lose control. The resulting dive imposed loads beyond the design stress limits of the airframe, leading to structural failure of the wings and horizontal stabilizers. The aircraft impacted the ground and was consumed by fire.
Probable Cause
The official investigation determined the probable cause to be airframe failure in flight after the pilot attempted operation beyond experience/ability level. Contributing factors included: the pilot suffering spatial disorientation, exceeding design stress limits of the aircraft, overload failure of the wings (spars) and flight control surfaces (horizontal stabilizer attachments), thunderstorm activity, and the horizontal stabilizers and wings failing downward.