Aeroflot Flight 411

Aeroflot Flight 411
	An Aeroflot Ilyushin Il-62M, similar to the accident aircraft
Accident
Date	6 July 1982
Summary	Low-altitude stall
Site	Mendeleyevo, Moscow Oblast, Soviet Union
Aircraft
Aircraft type	Ilyushin Il-62M
Operator	Aeroflot
Registration	СССР-86513
Flight origin	Moscow, Soviet Union
Stopover	Dakar, Senegal
Destination	Freetown, Sierra Leone
Occupants	90
Passengers	80
Crew	10
Fatalities	90
Survivors	0

Last updated July 27, 2023

Aeroflot Flight 411 was an international scheduled flight from Sheremetyevo Airport, Moscow to Freetown, Sierra Leone via Dakar in Senegal.^[1] Early on 6 July 1982, the four-engined Ilyushin Il-62 crashed and was destroyed by fire after two engines were shut down shortly after take-off.^[1]^[2] All 90 passengers and crew on board died as a result of the crash.

Aircraft

The accident aircraft was an Ilyushin Il-62M, with registration SSSR-86513.^{[lower-alpha 1]} Its first flight was in November 1980 and it had flown slightly more than 4,800 hours prior to the accident.^[1] The Il-62's four jet engines are mounted in pairs, on pylons either side of the rear fuselage.

Accident

The aircraft took off from Moscow's Sheremetyevo Airport at 12:33am with 80 passengers and 10 crew on board.^[3] Within seconds the engine fire warning for No. 1 engine^{[lower-alpha 2]} was annunciated. The crew shut down the engine and discharged the engine fire extinguishers. Less than a minute later the engine fire warning for No. 2 engine^{[lower-alpha 2]} was also annunciated and the crew shut this engine down as well.^[3] The crew turned the aircraft to return to Sheremetyevo Airport but after the second engine shutdown it was only at an altitude of about 160 metres (520 ft) and a speed of 320 km/h (170 kn; 200 mph).^[1] Despite the pilots' efforts to keep it airborne, the aircraft gradually lost height and airspeed until it stalled about 75 metres (246 ft) above the ground.^[1] It then crashed in a forested wetland 1.5 kilometres (0.9 mi; 0.8 nmi) east of the town of Mendeleyevo and 11.4 kilometres (7.1 mi; 6.2 nmi) northwest of Sheremetyevo Airport, less than three minutes after takeoff.^[1] A passenger from Sierra Leone survived the initial crash and subsequent fire, but died on the evening of 8 July.^[1]

Investigation

Post-crash examination of the engines found no pre-crash damage or signs of in-flight fire – the fire warnings were false.^[1]^[2] The fire warning system was almost completely destroyed by the crash and fire and the reason for the false warnings could not be determined; although there had been nine reported instances of bleed air leaks causing spurious engine fire warnings on Il-62s between 1975 and the date of the crash, this was ruled out as a cause.^[1]

The investigation found that it was impossible for the aircraft to maintain altitude on two engines with its flaps set for takeoff and at its weight of 164,514 kilograms (362,691 lb), which was close to the maximum takeoff weight for an Il-62.^[1] It found no fault with the pilots' actions, who could not make a forced landing because of the dark and the urban areas on the ground below.^[1] The investigation found the pilots had followed flight manual procedures; however there was no procedure in the flight manual to cover the situation in which they found themselves.^[1]

Notes

1 2 The aircraft registration prefix for civil aircraft registered in the Soviet Union was SSSR. In the Russian cyrillic alphabet, the English letter "S" is written as "C" and "R" is written as "P", hence "CCCP" is "SSSR" in cyrillic.
1 2 Engine No. 1 and Engine No. 2 are paired on the left side of the aircraft.

Related Research Articles

The Tupolev Tu-104 is a retired medium-range, narrow-body, twin turbojet-powered Soviet airliner. It was the second to enter regular service, behind the British de Havilland Comet, and was the only jetliner operating in the world from 1956 to 1958, when the British jetliner was grounded due to safety concerns.

The Tupolev Tu-124 is a 56-passenger short-range twinjet airliner built in the Soviet Union. It was the first Soviet airliner powered by turbofan engines.

The Ilyushin Il-12 was a Soviet twin-engine cargo aircraft, developed in the mid-1940s for small and medium-haul airline routes and as a military transport.

Aviaarktika was a Soviet airline which started operations on 1 September 1930 and was absorbed by Aeroflot on 3 January 1960.

Aeroflot Flight U-505 crashed just after takeoff in Tashkent on 13 April 1987. Flight 505 was an early morning flight from Tashkent to Shahrisabz, both in the Uzbek Soviet Socialist Republic, now the Republic of Uzbekistan. The flight took off just one minute and 28 seconds after an Ilyushin Il-76, thus encountering its wake vortex. The Yakovlev Yak-40 then banked sharply to the right, struck the ground, and caught fire. All 9 people on board died.

Aeroflot Flight 217 was a non-scheduled international passenger flight from Orly Airport in Paris to Sheremetyevo International Airport in Moscow, with a stopover at Shosseynaya Airport in Leningrad. On 13 October 1972, the Ilyushin Il-62 airliner operating the flight crashed on approach to Sheremetyevo, with the loss of all 164 passengers and crew of 10. At the time, it was the world's deadliest civil aviation disaster, until it was surpassed by the Kano air disaster in 1973. As of 2023, this remains the second-deadliest accident involving an Il-62, after LOT Flight 5055, and the second-deadliest on Russian soil, after Aeroflot Flight 3352.

Aeroflot Flight 25 was a scheduled domestic passenger flight that crashed on 4 April 1963 in the region of Rybnaya Sloboda, Tatar ASSR, Russian SFSR while en route from Moscow-Sheremetyevo to Krasnoyarsk Airport, Russian SFSR. All 67 people aboard were killed in the accident.

Aeroflot Flight 15 was a passenger flight from Moscow-Domodedovo Airport to Petropavlovsk-Kamchatsky Airport with a stopover at Yemelyanovo Airport that crashed on 29 February 1968 en route to Petropavlovsk. All but one aboard the aircraft were killed in the crash.

Aeroflot Flight 721 was a scheduled domestic passenger flight between Moscow and Yuzhno-Sakhalinsk in the Russian SFSR. On Wednesday, 2 September 1964, the aircraft flying this route, an Ilyushin Il-18V, crashed into the side of a hill on approach to Yuzhno-Sakhalinsk, killing 87 of the 93 people on board. At the time of the accident, it was the deadliest Il-18 crash and the deadliest aviation accident on Russian soil.

Aeroflot Flight 2230 was a Soviet domestic passenger flight from Yekaterinburg to Tashkent. On 16 November 1967, the Ilyushin Il-18 aircraft serving the flight crashed after takeoff, killing all 107 people aboard. At the time it was the deadliest aviation accident in the Russian SFSR and the worst accident involving the Il-18.

Aeroflot Flight 1036 was a domestic scheduled passenger flight operated by Aeroflot that crashed during takeoff from Sochi International Airport on 1 October 1972. All 109 people aboard the Ilyushin Il-18V perished in the crash. It is the second worst accident involving an Ilyushin Il-18 and it was the worst accident involving one at the time.

Aeroflot Flight 2415 was a regularly scheduled passenger flight from Moscow to Leningrad that crashed shortly after takeoff on 28 November 1976. The cause of the accident was attributed to crew disorientation as a result of artificial horizon failure in low visibility conditions.

Aeroflot Flight 343 (SU343/AFL343) was a passenger flight from Moscow-Sheremetyevo Airport to Jorge Chávez International Airport, on a stopover at Luxembourg-Findel International Airport, that veered off the runway on 29 September 1982, fatally injuring seven occupants. The Ilyushin Il-62M operating the flight suffered a mechanical failure.

Aeroflot Flight 558 was a scheduled Ilyushin Il-18V domestic passenger flight from Karaganda to Moscow that crashed into a field in the Abzelilovsky District on 31 August 1972 as a result of a fire stemming from exploded passenger baggage, killing all 102 people on board.

Aeroflot Flight 5003 was a Soviet domestic cargo flight that crashed during climb out on 14 January 1967. The Antonov An-12B was flying between Novosibirsk and Krasnoyarsk in Russia with a crew of six when it crashed. It was carrying industrial parts from Moscow to Khabarovsk with several intermediate stops in between, however it caught fire shortly after takeoff, resulting in a fatal accident. At the time Flight 5003 was being operated by Polar Aviation Management under Aeroflot.

On 27 April 1974, an Aeroflot Il-18 airliner crashed while operating a charter flight from Leningrad to Zaporizhzhia, continuing to Krasnodar, Russia. The plane crashed shortly after takeoff from Pulkovo Airport in Leningrad. None of the 109 people on board survived. An engine fire had been caused by a faulty compressor disk.

Aeroflot Flight 2723 was a Soviet domestic passenger flight from Bina International Airport to Makhachkala Airport. On 23 April 1966 the Ilyushin Il-14 operating the route ditched in the Caspian Sea following engine problems.

Pulkovo Aviation Enterprise Flight 9560 was a repositioning flight from Sheremetyevo International Airport in Moscow to Pulkovo Airport in St. Petersburg. On 28 July 2002, the Ilyushin Il-86 aircraft operating the flight crashed after take-off from Sheremetyevo. 14 of the 16 crew members on board were killed, making the crash the deadliest aviation accident involving the Ilyushin Il-86.

References

1 2 3 4 5 6 7 8 9 10 11 12 "Катастрофа Ил-62М ЦУ МВС близ пос. Менделеево (борт СССР-86513), 06 июля 1982 года. // AirDisaster.ru - авиационные происшествия, инциденты и авиакатастрофы в СССР и России - факты, история, статистика" [Catastrophe IL-62M CU MVS near the village. Mendeleevo (board USSR-86513), July 06, 1982. // AirDisaster.ru - aviation accidents, incidents and plane crashes in the USSR and Russia - facts, history, statistics]. www.airdisaster.ru (in Russian). Retrieved 9 May 2019.
1 2 UK CAA Document CAA 429 World Airline Accident Summary
1 2 Accident descriptionfor CCCP-86513 at the Aviation Safety Network. Retrieved on 3 January 2015.

56°01′39″N37°15′30″E / 56.02750°N 37.25833°E / 56.02750; 37.25833

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[Reg-1] 1 2 The aircraft registration prefix for civil aircraft registered in the Soviet Union was SSSR. In the Russian cyrillic alphabet, the English letter "S" is written as "C" and "R" is written as "P", hence "CCCP" is "SSSR" in cyrillic.

[Engines-5] 1 2 Engine No. 1 and Engine No. 2 are paired on the left side of the aircraft.

[:0-2] 1 2 3 4 5 6 7 8 9 10 11 12 "Катастрофа Ил-62М ЦУ МВС близ пос. Менделеево (борт СССР-86513), 06 июля 1982 года. // AirDisaster.ru - авиационные происшествия, инциденты и авиакатастрофы в СССР и России - факты, история, статистика" [Catastrophe IL-62M CU MVS near the village. Mendeleevo (board USSR-86513), July 06, 1982. // AirDisaster.ru - aviation accidents, incidents and plane crashes in the USSR and Russia - facts, history, statistics]. www.airdisaster.ru (in Russian). Retrieved 9 May 2019.

[caa429-3] 1 2 UK CAA Document CAA 429 World Airline Accident Summary

[ASN-4] 1 2 Accident descriptionfor CCCP-86513 at the Aviation Safety Network. Retrieved on 3 January 2015.

[lower-alpha 1]

[1]

[2]

[3]

[lower-alpha 2]