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Last updated: 26 October 2021
Statuts:Enquête Officielle
Date:samedi 7 juillet 1962
Heure:00:10
Type/Sous-type:Douglas DC-8-43
Compagnie:Alitalia
Immatriculation: I-DIWD
Numéro de série: 45631/160
Année de Fabrication: 1962
Heures de vol:964
Moteurs: 4 Rolls-Royce Conway 508-12
Equipage:victimes: 9 / à bord: 9
Passagers:victimes: 85 / à bord: 85
Total:victimes: 94 / à bord: 94
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:11 km (6.9 milles) NW of Junnar (   Inde)
Élévation des lieux de l'accident: 1098 m (3602 feet) amsl
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Bangkok-Don Muang International Airport (BKK/VTBD), Thaïlande
Aéroport de destination:Bombay-Santacruz Airport (BOM/VABB), Inde
Numéro de vol:AZ771
Détails:
Alitalia flight 771 was a scheduled flight from Sydney (Australia) to Rome (Italy) via Darwin (Australia), Singapore, Bangkok (Thailand), Bombay (India), Karachi (Pakistan) and Tehran (Iran). It departed Bangkok Airport for Bombay-Santacruz Airport at 15:16 UTC (22:16 local time). At 18:20 UTC (22:50 local time) the crew contacted Bombay Approach and received clearance to descend from FL350 to FL200. Five minutes later further clearance was given to 4000 feet. In preparation for a runway 27 approach, the crew reported that they would make a 360 degrees turn over the Outer Marker. Last radio contact was at 18:39 (00:09 local time). The DC-8 had descended below minimum safe altitude and struck the Davandyachi Hill at an elevation of approximately 3600 ft amsl (1098 m).

Probable Cause:

PROBABLE CAUSE: "The accident was attributed to a navigation error which led the pilot to believe that he was nearer his destination than he actually was and, therefore, caused him to make a premature descent in instrument conditions for a straight-in approach to land at night. The aircraft consequently, crashed into high terrain. Contributing causes were: 1) Failure on the part of the pilot to make use of the navigational facilities available in order to ascertain the correct position of the aircraft.
2) Infringement of the prescribed minimum safe altitude. 3) Unfamiliarity of the pilot with the terrain on the route."

Sources:
» ICAO Accident Digest No.14 Volume II, Circular 71-AN/63 (83-97)
» The Indian Express - Jul 8, 1962


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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 Bangkok-Don Muang International Airport et Bombay-Santacruz Airport est de 2993 km (1870 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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