Accident
Last updated: 31 July 2014
Statuts:Enquête Officielle
Date:mardi 12 novembre 1996
Heure:18:40
Type/Sous-type:Boeing 747-168B
Compagnie:Saudi Arabian Airlines
Immatriculation: HZ-AIH
Numéro de série: 22748/555
Année de Fabrication: 1982-02-03 (14 years 10 months)
Moteurs: 4 Rolls-Royce RB211-524C2
Equipage:victimes: 23 / à bord: 23
Passagers:victimes: 289 / à bord: 289
Total:victimes: 312 / à bord: 312
Victime de la collision:victimes: 37
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:5 km (3.1 milles) de Charki Dadri (   Inde) show on map
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Delhi-Indira Gandhi International Airport (DEL/VIDP), Inde
Aéroport de destination:Dhahran International Airport (DHA/OEDR), Arabie Saoudite
Numéro de vol: 763
Détails:
Air Kazakhstan Flight 1907, an Ilyushin 76 departed Shymkent (aka Chimkent), Kazakhastan for a flight to Delhi. While descending on Airway G452 the crew contacted Delhi: "Good evening 1907. Passing through 230 for 180, 74 miles from DPN [the Delhi Airport beacon]". The controller then cleared the flight to descend to and report at FL150. In the meantime, a Saudi Arabian Airlines Boeing 747 had departed Delhi at 18:32 for a passenger flight to Dhahran. Flight SV763 followed the Parvi SID and reported aproaching FL100. The Delhi controller cleared the flight, which was also on Airway G452, to climb to FL140. Because Flight 1907 was approaching from the opposite side, the controller told SV763: "Maintain level 140, Standby for higher." A little later, Flight 1907 reported reaching FL150 at 46 miles from the airport. The controller then responded: "Roger. Maintain 150. Identified traffic 12 o'clock, reciprocal Saudia Boeing 747, 14 miles. Report in sight." The Kazakhstan crew replied by querying the distance to which the controller answered: "Fourteen miles now, roger 1907." When no reply followed he again warned: "Traffic in 13 miles, level 140."
Apparently the Kazakh aircraft had descended below its assigned altitude and was flying at 14500 feet. A few seconds later seconds later the Ilyushin had descended another 310 feet. Shortly afterwards both aircraft collided, plummeted down in flames and crashed in an arid farming area.


PROBABLE CAUSE: "The root and approximate cause of the collision was the unauthorised descending by the Kazak aircraft to FL-140 and failure to maintain the assigned FL-150".

Sources:
» Aviation Week & Space Technology 18.11.96 (34-36)
» Civil aviation aircraft accident summary for the year 1996 (DGAC India)
» International Herald Tribune 6.5.1997


Photos

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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Delhi-Indira Gandhi International Airport et Dhahran International Airport est de 2650 km (1656 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 tels qui sont connus à ce jour.
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