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The Swedish Accident Investigation Board (SHK) writes that “the aircraft probably lost its lifting power (stopped) and then gained weight as a result of the slow speed and movements of the center of mass that led to an unstable aircraft. Since then, the aircraft has ended up in the clouds without any visual reference to which the pilot can relate. “
During the journey in the clouds, the plane was exposed to G-forces that exceeded what the plane was certified for and thus broke down, writes SHK.
“The possibility of getting out of the plane has been very small due to the forces g and the movements of the plane.”
The plane was too heavy
The final report also indicates that no faults have been found in the aircraft that could have contributed to the accident.
SHK has previously stated that the aircraft, of the Gipps Aero GA8 Airvan model, was too heavy and too heavy in the rear when it took off, and that the mass of the aircraft at the time of the accident was greater than allowed by the Swedish Transport Agency. . But that in itself cannot explain why the plane suddenly began diving from an altitude of 4,000 meters, just before the paratroopers left the plane, finally crashing on the island of Storsandskär off Umeå.
All on board, eight paratroopers and a pilot, were killed in the accident.