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Last updated: 4 December 2021
Date:dimanche 15 mai 1960
Heure:19:57 UTC
Type/Sous-type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas DC-4-1009
Immatriculation: HB-ILA
Numéro de série: 43072
Année de Fabrication: 1946
Equipage:victimes: 12 / à bord: 12
Passagers:victimes: 0 / à bord: 0
Total:victimes: 12 / à bord: 12
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:près de Tora-Tonga (   Soudan)
Phase de vol: En vol (ENR)
Aéroport de départ:Khartoum-Civil Airport (KRT/HSSS), Soudan
Aéroport de destination:Niamey Airport (NIM/DRRN), Niger
The Balair DC-4 flew into a slope of the Djebel Marr mountains while cruising at 8000 feet.
The airplane was operating on a ferry flight from Jeddah, Saudi Arabia to Dakar, Senegal.

Probable Cause:

PROBABLE CAUSE: "1) The fact that the aircraft progressed actually at an average ground speed of at least 200-205kts while the crew believed they were proceeding with no more than 175-178kts as estimated before takeoff. 2) That a slight directional difference of 2 or 3 degrees may have existed between the calculated track and the actual flight path. 3) That these two navigation inaccuracies could build up during a flight of 2,5h and could eventually result in a position error of about 70nm to the west and about 30nm to the south. 4) That for reasons unknown to the Board the position report given for 1906Z and apparently established on the base of an astronomical fix must have been inaccurate and that the crew were, therefore, not able to be conscious of the discrepancies between the dead-reckoning and their actual position. 5) That the aircraft flying at 8000ft hit a slope of the Djebel Marra mountains four minutes before the crew expected to be overhead the El Fasher beacon where they would have begun the climb to 12000ft and when, in their belief the aircraft should have been still more than 60 NM away from these mountains."


photo of Douglas-DC-4-1009-HB-ILA
accident date: 15-05-1960
type: Douglas DC-4-1009
registration: HB-ILA

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 Khartoum-Civil Airport et Niamey Airport est de 3256 km (2035 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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Douglas DC-4

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  • 227ème loss
  • 134ème accident fatal
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