Aeroflot Flight 3630 was a regularly scheduled passenger flight operated by Aeroflot from Mineralnye Vody Airport to Vilnius Airport with a stop over at Rostov-on-Don Airport. On 2 September 1970, the Tu-124 operating this flight crashed after a loss of control at cruise altitude, 42 minutes after takeoff from Rostov-on-Don Airport. All 32 passengers and five crew members were killed.
Aeroflot Flight 3630
A Tupolev Tu-124V similar to the accident aircraft
After a brief stopover, Flight 3630 departed Rostov-on-Don Airport at 14:55 Moscow time and at 15:14 reported passing over Donetsk at 8,400 meters. A short time later air traffic control (ATC) requested a rapid climb to 9,000 metres (30,000 ft) to avoid traffic and at 15:16 the flight reported reaching 9,000 metres (30,000 ft). At 15:31 the crew contacted ATC announcing in a calm tone their ground speed was 852 km/h (460 kn; 529 mph) and that they expected to pass over Kremenchug at 15:41. Then at 15:37 controllers received a short message from flight 3630 consisting of "Forty Five - Zero - Twelve" with the word twelve spoken with a frantic inflection. This was the last contact with the flight. The aircraft entered a steep pitch down as it rolled left, striking the ground at approximately a 70 degree angle at 950 km/h (513 kn; 590 mph).[1][2]
Aircraftedit
Construction of the Tu-124 involved, serial number 1350402 04–02, was completed at production factory 135 in Kharkiv, Ukraine, on 30 September 1961 and it was transferred to the civil air fleet. At the time of the accident, the aircraft had sustained a total of 7,504 flight hours and 6,996 cycles.[1]
Investigationedit
The aircraft created a deep cone-shaped crater at impact, destroying much of the airframe. The flight data recorder was damaged beyond recovery of any data but the Air Accident Investigation Commission were able to determine that the engines were set to idle power, the flaps, spoilers and landing gear were all in the retracted position and that rudder trim was full right with the left aileron trim full up.[1][2]
Weather along the flight route was calm and ruled out as a possible cause.[1]
Investigators looked into the possibility that the aircraft collided in flight with an unmanned military vehicle or a weather balloon but no evidence surfaced. The commission found no evidence of an in flight aircraft failure or structural break up. The right engine and other sections of the aircraft displayed damage due to fire and investigators considered that a fire in flight may have caused the accident. An examination of the victims found no smoke had been inhaled and further analysis of the crash site determined all fire damage occurred during the post crash fire so this possibility was ruled out.[1][2]
The investigators were able to conclude that full deflection of the rudder and left aileron trim would have significant effects on control of the aircraft at cruising speed but the chain of events leading to the accident was never determined.[1][2]
^ abcdef"Accident of Tu-124 of the Lithuanian Civil Aviation Administration in the Dnipropetrovsk region". airdisaster.ru. Dmitry Ertsov, Alexander Fetisov. Retrieved 23 September 2019.
^ abcd"Wednesday 2 September 1970". aviation-safety.net. Aviation Safety Network. Retrieved 23 September 2019.
April 11, 2024
aeroflot, flight, 3630, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, oct. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Aeroflot Flight 3630 news newspapers books scholar JSTOR October 2019 Learn how and when to remove this template message Aeroflot Flight 3630 was a regularly scheduled passenger flight operated by Aeroflot from Mineralnye Vody Airport to Vilnius Airport with a stop over at Rostov on Don Airport On 2 September 1970 the Tu 124 operating this flight crashed after a loss of control at cruise altitude 42 minutes after takeoff from Rostov on Don Airport All 32 passengers and five crew members were killed Aeroflot Flight 3630A Tupolev Tu 124V similar to the accident aircraftAccidentDate2 September 1970 1970 09 02 SummaryLoss of control for reasons unknownSiteNear Dnipropetrovsk UkraineAircraftAircraft typeTupolev Tu 124OperatorAeroflotRegistrationSSSR 45012Flight originMineralnye Vody AirportStopoverRostov on Don AirportDestinationVilnius AirportOccupants37Passengers32Crew5Fatalities37Survivors0The Air Accident Investigation Commission was unable to discover the root cause of the accident Contents 1 Accident 2 Aircraft 3 Investigation 4 See also 5 ReferencesAccident editAfter a brief stopover Flight 3630 departed Rostov on Don Airport at 14 55 Moscow time and at 15 14 reported passing over Donetsk at 8 400 meters A short time later air traffic control ATC requested a rapid climb to 9 000 metres 30 000 ft to avoid traffic and at 15 16 the flight reported reaching 9 000 metres 30 000 ft At 15 31 the crew contacted ATC announcing in a calm tone their ground speed was 852 km h 460 kn 529 mph and that they expected to pass over Kremenchug at 15 41 Then at 15 37 controllers received a short message from flight 3630 consisting of Forty Five Zero Twelve with the word twelve spoken with a frantic inflection This was the last contact with the flight The aircraft entered a steep pitch down as it rolled left striking the ground at approximately a 70 degree angle at 950 km h 513 kn 590 mph 1 2 Aircraft editConstruction of the Tu 124 involved serial number 1350402 04 02 was completed at production factory 135 in Kharkiv Ukraine on 30 September 1961 and it was transferred to the civil air fleet At the time of the accident the aircraft had sustained a total of 7 504 flight hours and 6 996 cycles 1 Investigation editThe aircraft created a deep cone shaped crater at impact destroying much of the airframe The flight data recorder was damaged beyond recovery of any data but the Air Accident Investigation Commission were able to determine that the engines were set to idle power the flaps spoilers and landing gear were all in the retracted position and that rudder trim was full right with the left aileron trim full up 1 2 Weather along the flight route was calm and ruled out as a possible cause 1 Investigators looked into the possibility that the aircraft collided in flight with an unmanned military vehicle or a weather balloon but no evidence surfaced The commission found no evidence of an in flight aircraft failure or structural break up The right engine and other sections of the aircraft displayed damage due to fire and investigators considered that a fire in flight may have caused the accident An examination of the victims found no smoke had been inhaled and further analysis of the crash site determined all fire damage occurred during the post crash fire so this possibility was ruled out 1 2 The investigators were able to conclude that full deflection of the rudder and left aileron trim would have significant effects on control of the aircraft at cruising speed but the chain of events leading to the accident was never determined 1 2 See also editAeroflot accidents and incidents Aeroflot accidents and incidents in the 1970sPortals nbsp Soviet Union nbsp Aviation nbsp Ukraine nbsp 1970sReferences edit a b c d e f Accident of Tu 124 of the Lithuanian Civil Aviation Administration in the Dnipropetrovsk region airdisaster ru Dmitry Ertsov Alexander Fetisov Retrieved 23 September 2019 a b c d Wednesday 2 September 1970 aviation safety net Aviation Safety Network Retrieved 23 September 2019 Retrieved from https en wikipedia org w index php title Aeroflot Flight 3630 amp oldid 1191718559, wikipedia, wiki, book, books, library,
