Accident Overview
On approach to Columbia Airport, the pilot encountered weather conditions below legal minimums, characterized by a low ceiling, fog, and rain. During the final approach, the pilot descended below the minimum descent altitude (MDA). The twin-engine airplane subsequently collided with trees and crashed, resulting in the destruction of the aircraft.
Occupants and Injuries
The pilot and one passenger were killed in the accident. A second passenger sustained serious injuries. The aircraft was destroyed by the impact.
Circumstances
The accident occurred while the aircraft was executing an instrument approach in deteriorating weather. The pilot continued the descent below the published MDA, leading to the collision with high obstructions (trees) on the approach path.
Official Probable Cause
The official investigation determined the probable cause to be improper IFR operation on the part of the pilot. Contributing factors reported include: low ceiling, rain and fog; pilot fatigue; high obstructions; weather conditions below minimums; and descent below MDA.