| 词条 | Aeroflot Flight 7841 |
| 释义 |
|name = Aeroflot Flight 7841 |image = Tupolev Tu-134A-3, Aeroflot AN1089514.jpg |caption = Soviet Aeroflot Tupolev Tu-134A, similar to that involved in the accident |date = 1 February 1985 |type = Double engine failure, due to ice ingestion |site = |coords = |aircraft_type = Tupolev Tu-134A |aircraft_name = |operator = Aeroflot |tail_number = CCCP-65910 |origin = Minsk-2 International Airport (MSQ/UMMS), Byelorussian SSR |stopover = |destination = Leningrad-Pulkovo Airport (LED/ULLI) Russian SSR |passengers = 74 |crew = 6 |injuries = |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 aircraft was officially written off.[2] AircraftThe 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] CrashSix seconds after takeoff, at an altitude of {{convert|35|m|ft|abbr=on}} and with a speed of {{convert|325|km/h|abbr=on}}, 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 {{convert|240|m|ft|abbr=on}} and a speed of {{convert|325|km/h|abbr=on}}, 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 m/s.[1] The aircraft was descending onto forest, with some trees up to 30 m in height.[1] At an altitude of {{convert|22|m|ft|abbr=on}} 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 {{convert|10|km|mi|abbr=on}} east of Minsk National Airport by search groups after three hours.[4][1] InvestigationThe 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] References1. ^1 2 3 4 5 6 7 8 9 10 11 {{cite web | url =http://www.airdisaster.ru/database.php?id=37| script-title=ru:Катастрофа Ту-134А Белорусского УГА в районе а/п Минск-2 |publisher =Airdisaster.ru|language=Russian| accessdate =21 July 2014}} {{Aeroflot}}{{Aviation accidents and incidents in 1985}}{{coord|53|52|44.76|N|28|11|42.36|E|source:wikidata|display=title}}2. ^1 {{cite web | url =http://russianplanes.net/reginfo/18693| title =Туполев Ту-134АК Бортовой №: CCCP-65910 |publisher =Russianplanes.net|language=Russian| accessdate =21 July 2014}} 3. ^{{cite web | url =http://www.tupolev.ru/en/civil_aviation/tu-134| title =Tu-134|publisher =Tupolev| accessdate =31 January 2015}} 4. ^{{cite web | url =http://aviation-safety.net/database/record.php?id=19850201-0| title =Accident description |publisher =Aviation Safety Network| accessdate =21 July 2014}} 7 : Accidents and incidents involving the Tupolev Tu-134|Aeroflot accidents and incidents|Airliner accidents and incidents caused by engine failure|Aviation accidents and incidents in 1985|1985 in the Soviet Union|Aviation accidents and incidents in Belarus|Aviation accidents and incidents in the Soviet Union |
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