What was the Constellation that crashed into Mount Toubkal in 1969 carrying?

On November 28, 1969, a Lockheed L-749 Constellation registered 5N-85H crashed into Mount Toubkal, in Morocco's Atlas Mountains, about 60 miles south of Marrakech. The cause was the failure of three of its four engines. All eight people on board died. The aircraft was not carrying passengers: it was carrying a cargo of weapons bound for Biafra.

The crash site, deep in the high mountains, meant the wreckage took a long time to appear. It was mountaineers who found the Constellation on July 18, 1970, almost eight months after the crash. Throughout that time the aircraft remained unlocated on the mountain, and it was the chance of an expedition, not an organized search, that led to the discovery of the aircraft's remains and those of its eight occupants. The original source of this information is an issue of the archive of the British association Air-Britain devoted to this L-749A.

By the late 1960s, Constellations had almost entirely disappeared from major airlines' scheduled services. The last scheduled passenger flight by a Constellation in the continental United States was operated by a TWA L749 on May 11, 1967, between Philadelphia and Kansas City, and the last in North America was flown by Western Airlines' N86525 in Alaska, between Anchorage, Yakutat, and Juneau, on November 26, 1968. After that withdrawal, many Constellations kept flying with smaller operators, mostly as cargo aircraft, and the 5N-85H was one of those veterans converted to tasks far removed from the scheduled passenger transport for which it had been designed.