Accident Details
A pilot departed on a Visual Flight Rules (VFR) flight without filing a flight plan or obtaining a weather briefing. During the flight, the aircraft encountered a squall line characterized by low ceilings, fog, mixed rain, and snow. While attempting to maneuver VFR through the adverse weather at a low altitude above the ground, the aircraft inadvertently entered clouds and subsequently collided with terrain at 7,500 feet above mean sea level in mountainous terrain. All five occupants were killed.
Probable Cause
The official investigation identified the probable cause as the pilot's inadequate preflight planning and preparation, failure to obtain a hazardous weather advisory, inadvertent VFR flight into instrument meteorological conditions (IMC), improper in-flight planning and decision-making, and failure to maintain proper altitude. The weather conditions included low ceilings, fog, rain, and snow, and the terrain was mountainous.