After taking off for a flight to Perm, it turned back due to a fire on board and crashed 11 kilometres (6.8 mi; 5.9 nmi) from the airport, killing all nine crew members.

After transporting a cargo of cash from Moscow to Chelyabinsk,[2][3][4] it was operating as an empty flight numbered GAI9675 to Perm.

During the pre-takeoff checklist, the crew noted warnings about a power supply failure in engines 1 and 2, but ignored them, as recorded by the CVR: The investigation team concluded that "here we go" probably referred to successful reactivation of the alternators by the radio operator.

The investigation found that the doors were closed at the time of the crash, and the false alarm was one of the first signs of problems in the power lines in the aircraft.

The crew contacted ATC and requested priority landing due to smoke in the cockpit.

With only two engines operating, the plane's speed fell to 280 kilometres per hour (150 kn; 170 mph), the minimum permitted without flaps.

An investigation concluded that during the last fifteen seconds of flight, the crew was unable to effectively operate the ailerons.

Medical experts ruled out incapacitation due to smoke inhalation, meaning that the pilots could not operate the ailerons because of mechanical failure caused by the fire.

The final report states the following reasons for the accident: The aviation incident with An-12 aircraft registered RA-12957 occurred as a result of impact with ground caused by lost control over the aircraft due to the destruction of aileron control wires during an emergency approach for landing because of smoke in the cabin.