What happened
A twin-engine aircraft, operating as a charter service from Hagfors to Oslo-Fornebu, was performing its takeoff roll on runway 18. The flight was carrying two pilots and four passengers. As the aircraft reached a speed of 95 knots, the crew determined that a successful takeoff was not possible and began an aborted takeoff procedure. During the attempt to stop using emergency braking, the aircraft failed to remain within the runway boundaries. The plane overran the runway, collided with a localizer antenna, and eventually stopped approximately 200 meters past the impact point. There were zero fatalities among the six occupants, all of whom were successfully rescued from the wreckage. The aircraft sustained damage that rendered it a total loss.
Findings
Investigations into the accident revealed that the aircraft had been moved from its hangar shortly before departure. While deicing procedures had been performed, the underwings were not treated. Due to heavy snowfall at Hagfors Airport, snow accumulated on the fuselage and upper wing surfaces in the interval between the aircraft being towed outside and the start of the takeoff roll. It is believed that snow accumulation on the wings prevented the aircraft from reaching the necessary rotation speed. Furthermore, the runway surface was covered in snow, which resulted in poor braking effectiveness when the crew attempted to decelerate.