Incident Overview
A twin-engine aircraft operating a charter flight from Hagfors to Oslo-Fornebu experienced a runway overrun during an aborted takeoff. The aircraft was carrying four passengers and two pilots.
Sequence of Events
During the takeoff roll on runway 18, at a speed of 95 knots, the crew realized they could not achieve a safe takeoff and decided to abandon the procedure. They initiated an emergency braking maneuver but were unable to stop within the remaining runway distance. The aircraft overran the runway, struck the localizer antenna, and came to rest 200 meters beyond the runway end.
Occupant and Aircraft Status
All six occupants were rescued from the aircraft. The aircraft sustained damage beyond repair.
Probable Cause
The official investigation determined that the aircraft had been taken out of the hangar only a few minutes prior to takeoff and had been deiced, except for the underwings. Weather conditions at Hagfors Airport were poor, with heavy snowfall. A certain quantity of snow accumulated on the upper wings and fuselage between the time the aircraft was towed from the hangar and the takeoff procedure. It is believed that the aircraft was unable to gain sufficient speed for takeoff due to snow accumulation on the upper wings and a probable accumulation of freezing rain on the underwings. Additionally, the runway surface was covered with snow, resulting in poor braking action when the crew initiated emergency braking.