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Aeroflot Flight 7841

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Aeroflot Flight 7841
Occurrence
Soviet Aeroflot Tupolev Tu-134A, similar to that involved in the accident
Date	1 February 1985 (1985-02-01)
Summary	Double engine failure, due to ice ingestion
Site	Minsk-2 International Airport (MSQ/UMMS), Byelorussian SSR 53°52′44.76″N 28°11′42.36″E / 53.8791000°N 28.1951000°E / 53.8791000; 28.1951000
Aircraft
Aircraft type	Tupolev Tu-134A
Operator	Aeroflot
Registration	CCCP-65910
Flight origin	Minsk-2 International Airport (MSQ/UMMS), Byelorussian SSR
Destination	Leningrad-Pulkovo Airport (LED/ULLI) Russian SSR
Occupants	80
Passengers	74
Crew	6
Fatalities	58
Survivors	22

Aeroflot Flight 7841 was a scheduled Soviet domestic passenger flight from Minsk to Leningrad (now Saint Petersburg), which crashed on 1 February 1985 killing fifty eight people on board.^[1] Twenty-two people (including three crew members) survived the accident.^[1] The crash was caused by engine failure brought on by ice ingestion. On 8 May 1985 the Tupolev Tu-134A was officially written off.^[2]

Aircraft

[edit]

The Tupolev Tu-134A, registration number CCCP-65910, serial number 63969, involved in the accident was manufactured on 11 May 1982 and had 448 completed flight cycles prior to the accident, having entered service on 8 June 1982.^[2]^[1] Tu-134s are equipped with two tail-mounted Soloviev D-30 turbofan engines.^[3]

Crash

[edit]

Six seconds after takeoff, at an altitude of 35 metres (115 ft) and with a speed of 325 km/h (175 kn; 202 mph), a rapid loss of power occurred, accompanied by pops and Jet Pipe Temperature (JPT) overheating.^[1] The crew levelled the wings and continued climbing, when the co-pilot reported a failure of the left engine to air traffic control.^[1] At 65 seconds after takeoff, an excessive vibration alarm indicated failure of the right engine.^[1] Then, at an altitude of 240 metres (790 ft) and a speed of 325 km/h (175 kn; 202 mph), the right engine failed, while the aircraft was still in the clouds.^[1] In an attempt to retain speed, the captain initiated a descent with a vertical speed of 7 metres per second (23 ft/s).^[1] The aircraft was descending onto forest, with some trees up to 30 m in height.^[1] At an altitude of 22 m (72 ft) and with a five-degree right bank angle, the aircraft impacted the tree tops. The aircraft continued hitting the trees and ultimately burned down except the aft portion.

The crash site was located 10 kilometres (6.2 mi; 5.4 nmi) east of Minsk National Airport by search groups after three hours.^[4]^[1]

Investigation

[edit]

The investigation concluded that both engines failed due to ice ingestion, which led to compressor stall, destruction of the compressors and over-temperature of the turbine blades.^[1] Citing significant damage to the aircraft and engines, the investigators were unable to determine where the ice came from.^[1]

References

[edit]

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Катастрофа Ту-134А Белорусского УГА в районе а/п Минск-2 (in Russian). Airdisaster.ru. Retrieved 21 July 2014.

^ ^a ^b "Туполев Ту-134АК Бортовой №: CCCP-65910" (in Russian). Russianplanes.net. Retrieved 21 July 2014.

^ "Tu-134". Tupolev. Archived from the original on 31 January 2015. Retrieved 31 January 2015.

^ "Accident description". Aviation Safety Network. Retrieved 21 July 2014.

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Accidents and
incidents

1940s	ANT-20bis crash CCCP-Л1450 crash
1950s	Flight 31 Kiev mid-air collision Flight 04 Тu-104 Kanash crash Flight 120 Flight 200 Flight 315
1960s	Flight 315 Flight 207 Flight 036 Flight 068 Flight 245 Flight 902 Flight 415 Flight 03 Flight 213 Flight 191 Flight 25 Flight 012 Flight 366 Flight 663 Flight 721 Flight 101/X-20 Flight 542 Flight 513 Flight 99 Flight 065 Flight 2723 Flight 5003 Flight 2230 Flight L-51 Flight 1668 Flight 15 Flight 831 Flight N-826
1970s	Flight U-45 Flight 1661 Flight 3630 CCCP-11000 crash CCCP-12996 crash Flight 1969 Flight 1912 Flight 773 Flight 2174 Flight 1491 Flight 558 Flight 1036 Flight 217 Flight 6263 Flight 141 Flight 630 Flight 6551 Flight 109 Flight A-13 Flight 3932 Flight 964 Flight 19 Flight 2022 Flight 2420 CCCP-75559 crash Flight 662 Flight 2003 Flight 3739 Flight 909 Flight 1802 Flight 418 Flights 7957 and 31 Flight 2415 Flight N-36 Flight 3843 Flight 5003 Flight 331 Flight B-2 Flight 6709 Flight 1080 Flight 1691 Flights 7628 and 7880 Flight 5484
1980s	Flight 4225 Flight 498 Flight 811 Flight 3603 Flight 8641 Flight 411 Flight 343 Flight 5463 Flight 601 Flight 3352 Flight 3519 Flight 7841 Zolochiv mid-air collision Flight 5143 Flight 101/435 Flight 2306 Flight 6502 Flight 892 Flight U-505 Flight N-528 Flight 699 Flight 3739
since 1990s	CCCP-46472 crash Flight 2808 Flight 593 Flight 521 Flight 821 Flight 1492

Aviation accidents and incidents in 1985

Jan 1

Eastern Air Lines Flight 980

Jan 21

Galaxy Airlines Flight 203

Feb 1

Aeroflot Flight 7841

Feb 19

China Airlines Flight 006

Feb 19

Iberia Flight 610

Feb 24

Polar 3

May 3

1985 Zolochiv mid-air collision

Jun 14

Trans World Airlines Flight 847

Jun 21

Braathens SAFE Flight 139

Jun 23

1985 Narita International Airport bombing

Jun 23

Air India Flight 182

Jul 10

Aeroflot Flight 5143

Aug 2

Delta Air Lines Flight 191

Aug 12

Japan Air Lines Flight 123

Aug 22

Manchester Airport disaster

Aug 25

Bar Harbor Airlines Flight 1808

Sep 4

Bakhtar Antonov An-26 shootdown

Sep 6

Midwest Express Airlines Flight 105

Sep 23

Henson Airlines Flight 1517

Nov 10

Teterboro mid-air collision

Nov 23

EgyptAir Flight 648

Nov 25

Aeroflot Antonov An-12 crash

Dec 12

Arrow Air Flight 1285R

Dec 19

Aeroflot Flight 101/435

Dec 31

Ricky Nelson plane crash

1984 ◄ ► 1986

Aviation accidents and incidents in the Soviet Union

1930s	Osoaviakhim-1 SSSR-V6 Osoaviakhim
1940s	1948 Aeroflot Ilyushin Il-12 crash
1950s	1950 Sverdlovsk plane crash LOT Polish Airlines Flight 232 1957 Kiev mid-air collision Aeroflot Flight 04 1958 Aeroflot Tu-104 Kanash crash Aeroflot Flight 315 (1959) Aeroflot Flight 120 Aeroflot Flight 200
1960s	Aeroflot Flight 315 (1960) U-2 incident Aeroflot Flight 207 RB-47 shootdown incident Aeroflot Flight 036 Austrian Airlines Flight 901 Aeroflot Flight 068 Aeroflot Flight 245 Aeroflot Flight 902 Aeroflot Flight 415 Aeroflot Flight 213 (1962) Aeroflot Flight 191 Aeroflot Flight 03 Aeroflot Flight 25 Aeroflot Flight 012 Aeroflot Flight 366 Aeroflot Flight 663 Aeroflot Flight 721 Aeroflot Flight 101/X-20 Aeroflot Flight 542 Aeroflot Flight 513 Aeroflot Flight 99 Aeroflot Flight 065 Aeroflot Flight 2723 Aeroflot Flight 5003 (1967) Aeroflot Flight 2230 Aeroflot Flight L-51 Aeroflot Flight 15 Seaboard World Airlines Flight 253A 1969 Yukhnov mid-air collision Aeroflot Flight N-826
1970s	Aeroflot Flight U-45 Aeroflot Flight 1661 Dymshits–Kuznetsov hijacking affair Aeroflot Flight 3630 Aeroflot Flight 244 22 January 1971 Surgut Aeroflot Antonov An-12 crash 31 January 1971 Surgut Aeroflot Antonov An-12 crash Aeroflot Flight 1969 Aeroflot Flight 1912 Malév Flight 110 Aeroflot Flight 773 Aeroflot Flight N-63 Aeroflot Flight 2174 Aeroflot Flight 1491 Aeroflot Flight 558 Aeroflot Flight 1036 Aeroflot Flight 217 Japan Air Lines Flight 446 Aeroflot Flight 6263 Aeroflot Flight 141 Aeroflot Flight 630 Balkan Bulgarian Airlines Flight 307 Aeroflot Flight 6551 Aeroflot Flight 109 Aeroflot Flight A-13 Aeroflot Flight 3932 Aeroflot Flight 964 Aeroflot Flight 19 Aeroflot Flight 2022 Aeroflot Flight 2420 1974 Leningrad Aeroflot Il-18 crash 1974 Surgut mid-air collision Aeroflot Flight 2003 Aeroflot Flight 3739 (1976) Aeroflot Flight 909 Aeroflot Flight 1802 Aeroflot Flight A-53 Aeroflot Flight 418 1976 Anapa mid-air collision Aeroflot Flight 2415 Aeroflot Flight N-36 Aeroflot Flight 3843 Aeroflot Flight 5003 (1977) 1977 Aeroflot Tupolev Tu-134 hijacking Aeroflot Flight B-2 Aeroflot Flight 6709 Korean Air Lines Flight 902 1978 Yegoryevsk Tu-144 crash Iranian Chinook shootdown Aeroflot Flight 1080 Aeroflot Flight 1691 1979 Dniprodzerzhynsk mid-air collision Aeroflot Flight 5484
1980s– Dec. 1991	Aeroflot Flight 4225 1981 Pushkin Tu-104 crash Aeroflot Flight 498 1981 Armenia mid-air collision 1981 Zheleznogorsk mid-air collision Aeroflot Flight 811 Aeroflot Flight 3603 Aeroflot Flight 8641 Aeroflot Flight 411 Aeroflot Flight 5463 Korean Air Lines Flight 007 Aeroflot Flight 601 Aeroflot Flight 3352 Aeroflot Flight 3519 Aeroflot Flight 7841 1985 Zolochiv mid-air collision Aeroflot Flight 5143 Aeroflot Flight 101/435 Aeroflot Flight 2306 Aeroflot Flight 6502 Aeroflot Flight U-505 Aeroflot Flight N-528 Aeroflot Flight 699 Aeroflot Flight 3739 (1988) 1988 Soviet Air Force Il-76 crash An-24 crash in Navoiy Aeroflot Flight 8556

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