Air Zaïre the government. Part of the contract with Sabena saw the Belgian airline train Air Congo personnel for a six-year period, and by the end of 1962 Air Congo had 2,400 employees, of which some 1,100 were seconded from Sabena. By this time the airlines' destinations included Entebbe, Lagos, Nairobi, Ndola, Salisbury and Usumbura. Jet service to Brussels was inaugurated in March 1963 utilising a Boeing 707 which was leased from Sabena, and in April 1963 the airline joined the International Air Transport Association, becoming the 94th overall member. The airline signed an agreement with French airline Union des Transports Aériens
Sabena Douglas DC-7C was introduced for long-haul routes but this plane would begin to be supplanted after only three years by the jet age. It remained in service on the transatlantic route until 1962. On 3 June 1954, a Soviet Air Force Mikoyan-Gurevich MiG-15 (NATO reporting name "Fagot") attacked a Sabena-operated Douglas DC-3 on a cargo flight from the United Kingdom to Yugoslavia, killing the radio operator and wounding both the captain and engineer. Co-pilot Douglas Wilson managed to land in Austria but the plane suffered significant damage. For the 1958 world exposition in Brussels, Sabena leased two Lockheed Super Constellations