Aeroflot Flight Sh-4
[citation needed] At the time of the accident, the aircraft had accumulated 1020 flight hours and 1344 cycles.The aircraft departed Frunze Airport at 20:24, reaching the assigned altitude of 5,700 m (18,700 ft).[2] After the aircraft flew over the Toktogul Dam, the controller instructed the flight to descend to 5,700 meters (18,700 ft).At the same time, the controller failed to inspect where the flight was on the radar and did not know where its position was but gave permission to descend to 3,300 meters (10,800 ft).The commission had also found the following contributing factors, leading to the accident:[1][2][failed verification]“Terrible navigation training for the PIC and F/O, lack of experience with the IFR during flights with the Yak-40.