Night Approach Accident at Grand Rapids-Itasca County (N4146S)

Incident Overview During a night instrument flight rules (IFR) approach to Grand Rapids-Itasca County, a twin-engine aircraft descended below the minimum descent altitude (MDA). The aircraft struck tree tops and crashed in a wooded area approximately 1 to 1.5 miles short of the runway. The impact caused the aircraft to catch fire, resulting in total destruction of the airframe. The passenger was killed in the accident, while the pilot sustained serious injuries. ## Contributing Factors The official investigation identified several contributing factors to the accident. These included a low ceiling, fog, and weather conditions below minimums. The pilot's descent below the MDA was also noted as a contributing factor. ## Probable Cause The official probable cause was determined to be improper IFR operation by the pilot, who failed to follow approved procedures.