Aeroflot Flight 964
An Aeroflot Tupolev Tu-104B similar to the aircraft involved
|Date||13 October 1973|
|Summary||Spatial disorientation after electrical failure|
|Site||16 km north-west of Domodedovo Airport|
|Aircraft type||Tupolev Tu-104|
|Flight origin||Kutaisi Airport, Georgia|
|Destination||Domodedovo Airport, Moscow, Russia|
Aeroflot Flight 964 was a flight operated by Aeroflot from Kutaisi Airport, Georgia to Domodedovo Airport, Moscow, Russian SFSR. On 13 October 1973 the Tupolev Tu-104 operating on the route crashed during its approach to Moscow, killing all 122 passengers and crew on board. It remains deadliest accident involving a Tupolev Tu-104.
The aircraft involved in the accident was a Tupolev Tu-104B, registered CCCP-42486 to the Georgia division of Aeroflot. Originally the aircraft cabin had 100 seats, but it was later reconfigured for 115 seats. At the time of the accident the aircraft had 16,250 flight hours and sustained 9,776 pressurization cycles.
- Captain Kurtsidze Georgy Iraklievich
- Co-pilot Ratiani Carmen Semenovich
- Navigator Yegoian Boris Grigorievich
- Flight Engineer Zakariadze Devi Alexandrovich
- Radio operator Lominadze Gurami Georgievich
The flight departed Kutaisi Airport at 18:10 with 114 passengers aboard. It should be noted that eight passengers boarded the flight illegally. At 19:52 the Tu-104 was handed over to Moscow air traffic control. At 20:12:55 the controller gave Flight 964 permission to descend to an altitude of 400 meters. 26 seconds later the aircraft was reported to be 11 kilometers from Domodedovo at an altitude of 900 meters. At 20:13:28 the crew reported that were on a bearing of 317° (opposite to the runway) and at 20:15:55 the pilots informed the controller that they were having issues with their compass, while at an altitude of 900 meters. At 20:16:25 with the landing gear released, at a speed of 380-400 km/h and 19 kilometers from the runway the aircraft began to perform a third right turn for the approach. No more radio transmissions were heard from the flight.
Visibility that night was at 2,400 meters. During approach while on a bearing of 143° the crew lost spatial orientation, entered a spin to the left and crashed in a field 16 km northwest of Domodedovo Airport (19.6 kilometers from the airport reference point), striking several power lines. The field of debris was approximately 248 by 180 meters; All 114 passengers and 8 crew were killed.
The investigation concluded that after the first right turn executed by the aircraft (in which the bank exceeded 40°), multiple navigation instruments including the compass and artificial horizon failed. Combined with the poor visibility at the airport, the crew lost spacial orientation and were unable to see any landmarks to determine their position. When the plane banked slightly to the right, the pilots corrected the right bank only to put the plane into a sharp left bank that reached 70°, causing the crash. 
Aeroflot Flight 3932, also a Tupolev Tu-104, crashed during approach to Moscow experiencing failures of the compass and artificial horizon.
Aeroflot Flight 2415, another Tupolev Tu-104, crashed during takeoff after experiencing similar failure of the artificial horizon.
- "Accident synopsis, Tupolev Tu-104 CCCP-42486". Aviation-safety.net. Retrieved 30 December 2012.
- "✈ russianplanes.net ✈ наша авиация". russianplanes.net. Retrieved 2017-04-15.
- "Катастрофа Ту-104Б Грузинского УГА в районе а/п Домодедово (борт CCCP-42486), 13 октября 1973 года. // AirDisaster.ru - авиационные происшествия, инциденты и авиакатастрофы в СССР и России - факты, история, статистика". www.airdisaster.ru. Retrieved 2017-04-15.
- "Soviet Transport - Scramble". www.scramble.nl. Retrieved 2017-04-15.