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Accident
Last updated: 24 October 2017
Statuts:Enquête Officielle
Date:mercredi 17 mars 1982
Heure:08:10
Type/Sous-type:Silhouette image of generic A30B model; specific model in this crash may look slightly different
Airbus A300B4-203
Compagnie:Air France
Immatriculation: F-BVGK
Numéro de série: 070
Année de Fabrication: 1979-02-22 (3 years )
Heures de vol:9053
Cycles:3376
Moteurs: 2 General Electric CF6-50C2
Equipage:victimes: 0 / à bord: 13
Passagers:victimes: 0 / à bord: 111
Total:victimes: 0 / à bord: 124
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:San'a International Airport (SAH) (   Yémen)
Élévation des lieux de l'accident: 2199 m (7215 feet) amsl
Phase de vol: Au décollage (TOF)
Nature:Transport de Passagers Intern.
Aéroport de départ:San'a International Airport (SAH/ODSN), Yémen
Aéroport de destination:Cairo International Airport (CAI/HECA), Egypte
Numéro de vol:AF125
Détails:
While travelling at 95 knots during takeoff from San'a International Airport, an explosion was felt, followed by shimmy and vibrations. The crew, thinking a tyre had exploded, aborted the takeoff. The explosion was in fact caused by an uncontained failure of the stage 1 HP compressor disk of the no. 2 engine. Debris punctured the fuel tank, causing a fire on the right hand side of the aircraft. The propagation of a low cycle fatigue crack on one of the embossments of the disk rim caused the disk fracture.

Probable Cause:

CAUSES: "The accident directly resulted from the uncontained explosion of a first stage high pressure turbine disk of the right hand engine. The propagation of a low cycle fatigue crack on one of the embossments of the disk rim was at the origin of the disk fracture.
This cracks, which existed before, had not been detected during the inspection conducted in the operator's workshops, according to the method defined by the manufacturer and in accordance with the requirements of the airworthiness authority. The investigations showed that it was necessary, not only to reduce the intervals between the inspections of these disks and conduct two independent sequential inspections, but also to modify the design and make sure they were progressively replaced by the new type. It seems obvious that the limit life validation methods used at the time of the accident, were still insufficient, as far as the probability of non-detection of cracks was concerned."



Opérations de secours

CAMA Yemen issued 4 Safety Recommendations

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Photos

photo of Airbus A300B4-203 F-BVGK
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre San'a International Airport et Cairo International Airport est de 2077 km (1298 miles).

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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