ASN Aircraft accident Avro 685 York I G-AHEZ Dakar-Yoff Airport (DKR)
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Date:Sunday 13 April 1947
Type:Silhouette image of generic a685 model; specific model in this crash may look slightly different
Avro 685 York I
Operator:British South American Airways - BSAA
Registration: G-AHEZ
MSN: 1303
First flight: 1946
Engines: 4 Rolls-Royce Merlin
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 6 / Occupants: 9
Total:Fatalities: 6 / Occupants: 15
Aircraft damage: Damaged beyond repair
Location:Dakar-Yoff Airport (DKR) (   Senegal)
Phase: Landing (LDG)
Nature:International Scheduled Passenger
Departure airport:Lisboa-Portela de Sacavém Airport (LIS/LPPT), Portugal
Destination airport:Dakar-Yoff Airport (DKR/GOOY), Senegal
The Avro York plane crash-landed on its belly following 3 unsuccessful attempt to land in poor visibility conditions. The belly was split open and the fuselage broke up to the rear of the wing.

Probable Cause:

PROBABLE CAUSE: "Direct Causes: Flight plan (too great errors in the ETA; endurance inexact); Lack of decision on the part of the pilot who, after his second attempt to land, and in view of his insufficient petrol reserve, should have carried out the diversionary plan.; The lighting of the runways was inadequate: There were no approach lights.; There are no wireless facilities for landing in bad visibility at Dakar-Yoff.
Contributory Causes: Difficulties in exchange of radio telephony communications between the control tower and the aircraft.; Insufficient knowledge of the English language by the controllers in the tower, according to the Americans and British.; As regards to the crew, there certainly appears to have been a slight nervousness during the attempts to land. The danger to passengers in the case of cabin fuselage below the wing in the event of a forced landing elsewhere than on a runway. Lack of knowledge of THIES by BSAA crews. THIES was given on the old general aeronautical maps but, at the time of the accident, no schedule for this aerodrome has yet been published by the Aeronautical Information Section. This schedule is now available."

Language/communication problems
Forced landing on runway


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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 Lisboa-Portela de Sacavém Airport to Dakar-Yoff Airport as the crow flies is 2777 km (1736 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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