Narrative:The Balair DC-4 flew into a slope of the Djebel Marr mountains while cruising at 8000 feet.
|Date:||15 MAY 1960|
|C/n / msn:|| 43072|
|First flight:|| 1946|
|Crew:||Fatalities: 12 / Occupants: 12|
|Passengers:||Fatalities: 0 / Occupants: 0|
|Total:||Fatalities: 12 / Occupants: 12 |
|Airplane damage:|| Written off|
|Airplane fate:|| Written off (damaged beyond repair)|
|Location:||near Tora Tonga (Sudan)
|Phase:|| En route (ENR)|
|Departure airport:||Niamey Airport (NIM/DRRN), Niger|
|Destination airport:||Khartoum-Civil Airport (KRT/HSSS), Sudan|
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."
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not
display the exact flight path.
Distance from Niamey Airport to Khartoum-Civil Airport as the crow flies is 3257 km (2035 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.