Date:	Thursday 23 April 1959
Time:
Type:	Avro 688 Super Trader
Owner/operator:	Air Charter Ltd.
Registration:	G-AGRH
MSN:	1256
Fatalities:	Fatalities: 12 / Occupants: 12
Aircraft damage:	Destroyed, written off
Category:	Accident
Location:	Mount Süphan -   Turkey
Phase:	En route
Nature:	Cargo
Departure airport:	Ankara (unknown airport)
Destination airport:	Bahrain International Airport (BAH/OBBI)
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The Super Trader departed Ankara for a flight to Bahrain. At 08:14 the aircraft passed Gemerek at FL115 and Elazig at 08:59 (at FL135). Last position report received was when over Mus at 09:26. The aircraft had crashed and was found after six days on Suphan Mountain.

PROBABLE CAUSE: "The aircraft, flying on instruments, drifted north of its normal track because of strong winds and crashed into the mountain.
Contributing factors' 1) The winds were stronger than forecast; 2) An accurate bearing could not be obtained at Mus, and Van had not been checked; 3) Sub-normal temperatures would result in a high indicated altimeter reading; 4) Calculations on the flight and contacts with beacons were not coordinated and controlled."

ICAO Accident Digest Circular 62-AN/57 (114-115)

photo (c) Yasin Çiftci; Mount Süphan; 08 September 2019

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