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Aeroflot Flight A-13 (Russian: Рейс A-13 Аэрофлота Reys A-13 Aeroflota) was a scheduled Soviet domestic passenger flight from Baku, Azerbaijan to Fort-Shevchenko in Kazakhstan that crashed on 18 August 1973 shortly after takeoff killing 56 of the 64 passengers and crew aboard. The Antonov An-24 had suffered an engine failure on takeoff and was attempting to return to the airport when it struck an oil rig cable at low altitude resulting in a crash. At the time, it was the second worst accident involving the An-24 and remains the worst aviation accident in Azerbaijani history.[1] The engine failure had been caused by the effect of continuous overheating on the performance of the blades.

Aeroflot Flight A-13
An Aeroflot Antonov An-24B, similar to the one involved in the accident
Accident
Date18 August 1973
SummaryStruck a cable at low altitude after suffering an uncontained engine failure
Sitenear Baku, Azerbaijan
40°19′48.6″N 50°34′08.6″E
Aircraft
Aircraft typeAntonov An-24B
OperatorAeroflot
RegistrationCCCP-46435
Flight originBaku-Bina International Airport, Azerbaijan
DestinationFort-Shevchenko Airport, Kazakh SSR
Passengers60
Crew4
Fatalities56
Injuries8
Survivors8

Aircraft


The aircraft involved in the accident was an Antonov An-24B registered CCCP-46435 to Aeroflot. The Antonov An-24 is a twin engine medium haul transport/passenger aircraft that was introduced in 1962. The 'B' variant of the model increased passenger capacity and modified the flaps to increase performance.[2] CCCP-46435 entered service in 1968 and was operating under the Azerbaijan Civil Aviation Administration. At the time of the accident, the aircraft had sustained 7,374 flight hours and 5,502 pressurization cycles.[3]


Crew


The cockpit crew consisted of:


Accident


At 18:36 MSK on 18 August 1973, CCCP-46435 took off from Baku-Bina International Airport for an approximately 300 mile (480 km) flight to the Kazakh town of Fort-Shevchenko. Weather at the time was fair with ten kilometers of visibility, and wind coming from the north. On board were sixty passengers, including eleven children, and four crew who were on their second flight of the day. Just 30 feet (10 m) above the runway, the An-24 suffered an uncontained failure of the left engine. At 90 feet (30 m) the crew retracted the flaps and began turning left at an altitude of 120 feet (40 m). As it turned, the left wingtip struck the cable of an oil rig in the Caspian Sea, shearing it off. The plane descended, striking a pipeline, before crashing near a highway at 18:51 MSK. 54 people on board were killed and eight others seriously injured including the flight's captain and flight engineer.[1][3]


Conclusions


An investigation of the crash blamed the engine failure on the degradation of the turbine blades in the engine as a result of continuous overheating. This overheating can stem from several causes including not following the correct start-up procedures, design flaws, and the inability to detect overheating by visual means or through instrument indications. The plane was also overloaded beyond its weight capacity by 193 kilograms (425 lbs).[3]


See also



References


  1. Ranter, Harro (1973-08-18). "ASN Aircraft accident Antonov 24B CCCP-46435 Baku-Bina International Airport (BAK)". Aviation Safety Network >. Retrieved 2018-02-11.
  2. "Antonov AN24". aviation history, history of flight, century of flight. Retrieved 2018-02-11.
  3. "Катастрофа Ан-24Б Азербайджанского УГА близ Баку (борт CCCP-46435), 18 августа 1973 года. // AirDisaster.ru - факты, история, статистика". авиационные происшествия, инциденты и авиакатастрофы в СССР и России (in Russian). Retrieved 2018-02-11.

На других языках


[de] Aeroflot-Flug A-13

Am 18. August 1973 verunglückte eine Antonow An-24 auf dem innersowjetischen Linienflug Aeroflot-Flug A-13 von Baku nach Schewtschenko kurz nach dem Start, wobei 56 der 64 Insassen starben. Bis zum Flugzeugabsturz bei Sumqayıt im Oktober 1989 war es der schwerste Flugunfall im Gebiet des heutigen Aserbaidschans.
- [en] Aeroflot Flight A-13

[it] Volo Aeroflot 13

Il volo Aeroflot 13 (in russo: Рейс 13 Аэрофлота?, traslitterato: Rejs 13 Aeroflota) era un volo passeggeri nazionale sovietico di linea da Baku, RSS Azera, a Fort Ševčenko, RSS Kazaka, che si schiantò il 18 agosto 1973 poco dopo il decollo, provocando la morte di 56 dei 64 a bordo. L'Antonov An-24 aveva subito un guasto al motore poco dopo il decollo e stava tentando di tornare in aeroporto quando colpì un cavo di una piattaforma petrolifera a bassa quota e precipitò.[1] All'epoca, fu il secondo peggior disastro coinvolgente un An-24 e rimane il peggior incidente aereo nella storia dell'Azerbaigian.[2][3]

[ru] Катастрофа Ан-24 под Баку

Катастрофа Ан-24 под Баку — авиационная катастрофа, произошедшая 18 августа 1973 года близ города Баку с самолётом Ан-24Б авиакомпании Аэрофлот, в результате которой погибли 56 человек.



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