Boeing 707 center section tanks. Its first flight was on January 11, 1958; 69 turbojet 707-320s were delivered through January 1963, the first passengers being carried (by Pan Am) in August 1959. The 707-420 was identical to the −320, but fitted with Rolls-Royce Conway 508 (RCo.12) turbofans (or by-pass turbojets as Rolls-Royce called them) of 18,000 lb (79 kN) thrust each. The first announced customer was Lufthansa. BOAC's controversial order was announced six months later, but the British carrier got the first service-ready aircraft off the production line. The British Air Registration Board refused to give the aircraft a certificate of airworthiness,
El Al El Al's success continued into the late 1960s. In 1968, regular flights to Bucharest were inaugurated, and cargo flights began to Europe and the United States. The airline also established a catering subsidiary, Teshet Tourism and Aviation Services Ltd. All these ventures brought in a profit of $2 million that year. In 1968, El Al experienced the first of many acts of terrorism that have been perpetrated against the airline. On 23 July, the only successful hijacking of an El Al aircraft took place, when a Boeing 707 carrying 10 crew and 38 passengers was taken over by three members