The two survivors were Ukrainian nationals, who worked as technicians and were not in the flights cockpit; they were taken to hospital and treated for their injuries.
[3] Arif Mammadov, head of Azerbaijan's State Civil Aviation Administration, said that the aircraft crashed after hitting an obstruction.
The final report was released by the Russian Interstate Aviation Committee in October 2022, stated that the probable cause was the crew decision to conduct the takeoff with engine #3 inoperative, the propeller of which was not feathered.
Thus, the aircraft takeoff run was conducted with the unfeathered propeller of the inoperative engine #3 which caused a significant negative thrust development and inhibited the speed increase.
The available data do not provide the opportunity to precisely determine the reason why during the takeoff run, the crew did not increase the engine #3 rpm up to the values more than the ground idle.
The most probable reason may be the increase of the turbine outlet temperature of engine #3 above the maximum allowable taxiing limit.
The recorded information and the CCTV data of Dwyer AD evidence that with the elevator nose-up deflection to -14°, the aircraft did not lift off.