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Last updated: 29 July 2021
Statuts:Enquête Officielle
Date:samedi 5 mars 2011
Heure:10:40
Type/Sous-type:Silhouette image of generic A148 model; specific model in this crash may look slightly different
Antonov An-148-100E
Compagnie:Voronezh Aircraft Production Association - VASO
Immatriculation: 61708
Numéro de série: 41-03
Année de Fabrication: 2011-01-03 (2 months)
Cycles:32
Equipage:victimes: 6 / à bord: 6
Passagers:victimes: 0 / à bord: 0
Total:victimes: 6 / à bord: 6
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Garbuzovo, Belgorod region (   Fédération de Russie)
Phase de vol: En vol (ENR)
Nature:Test
Aéroport de départ:Voronezh-Pridacha Airport (UUOD), Fédération de Russie
Aéroport de destination:Voronezh-Pridacha Airport (UUOD), Fédération de Russie
Détails:
An Antonov 148-100E jet, registered 61708, was destroyed in an accident near Garbuzovo, Belgorod Region, Russia, killing all six crew members.
The airplane, operating on its 32nd flight, was used to train pilots of the Myanmar Air Force. The AN-148 was due to be delivered to Myanmar later that year.
Around 10:40 the aircraft broke up in flight. Parts of the aircraft, including part of the horizontal stabilizer with elevator, were found 2-3 km from the main crash site.

Probable Cause:

The cause of the accident was the inadvertently permitted the aircraft to accelerate 110 km/h above the design limit speed during an emergency descent.
This led to low-frequency vibrations on the aircraft in all axes, an increase of alternating accelerations exceeding the margin of safety. The result was the break up of the aircraft in the air, followed by its collision with the earth.
The main factors contributing to the accident were:
1) untimely and inadequate actions of the crew to control the emergency decent;
2) lack of proper coordination among the members of the crew;
3) deviations from recommendations in the flight manual in executing the emergency descent ;
4) misleading indications on basic instruments when outside characteristic operating conditions

Sources:
» airdisaster.ru
» Gazeta.ru
» Equipment failure is prime cause of An-148 crash - SK (ITAR-TASS, 9-3-2011)
» Investigative Committee statement (9-3-2011)


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Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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