What happened
During takeoff from runway 24 at Oslo-Fornebu Airport, the aircraft was in its initial climb phase at a speed of 140 knots and an altitude of approximately 30 feet when a stall warning was triggered. In response to the alert, the captain attempted to abort the takeoff and return for a landing. However, with only 1,100 meters of runway remaining, there was inadequate distance to decelerate the aircraft safely. As a result, the plane overran the runway and entered the adjacent bay.
Despite the impact with the water, all 33 occupants were successfully rescued from the wreckage. The aircraft sustained damage that rendered it a total loss.
Findings
Investigations into the incident revealed that the aircraft was maintaining the appropriate airspeed during the climb. The activation of the stall warning was not due to an aerodynamic stall, but rather resulted from a computer error that incorrectly processed data received from the Pitot tubes. Records indicated that this specific aircraft had experienced several instances of erroneous stall warnings in the days preceding the accident.