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Status
Date Tuesday 1 June 1976
Time
Type Silhouette image of generic T154 model; specific model in this crash may look slightly different    
Tupolev Tu-154A
Operator Aeroflot, International Civil Aviation Directorate
Registration CCCP-85102
MSN 75A102
Year of manufature 1975
Engines Kuznetsov NK-8-2U
Crew Fatalities: 10 / Occupants: 10
Passengers Fatalities: 35 / Occupants: 35
Total occupants Fatalities: 45 / Occupants: 45
Aircraft damage Destroyed, written off
Aircraft fate w/o
Location Macías Nguema Biyogo Island   Equatorial Guinea
Phase En route
Nature Passenger - Scheduled
Departure Airport Malabo-Santa Isabel Airport (SSG/FGSL)
Destination Airport Tripoli International Airport (TIP/HLLT)
Narrative The Tupolev was on an international flight from Luanda (LAD), Angola to Moscow-Sheremetyevo (SVO), Russia with enroute stops at Malabo (SSG), Equatorial Guinea and Tripoli (TIP), Libya. After takeoff from Malabo the aircraft collided with Mount San Carlos on Macías Nguema Biyogo (now Bioko) Island at a height of 750 m. The mountain is located on the southern tip of the island, some 50 km south of the Malabo Airport.
The cause of the accident could not be established, but the accident investigation commission suspected that the MSRP-12 radar on the Tu-154 may have failed so that the crew was not aware of its position over the island.

sources

Flight International 11 December 1976 (1695)
Soviet Transports
airdisaster.ru