Sabena airliners which were augmented and later replaced by Douglas DC-6Bs. The DC-4s also restarted the airline's traditional route to the Belgian Congo. Sabena was the first airline to introduce transatlantic schedules from the north of England, when one of its DC-6Bs inaugurated the Brussels-Manchester-New York route on 28 October 1953. The Convair 240 was introduced in 1949 to partially replace the DC-3s that until then had flown most European services. As of 1956, improved Convair 440 "Metropolitan" twins began replacing the Convair 240 twins and were used successfully well into the 1960s between European regional destinations. In 1957, the long-range
Croatia Airlines Airbus A320 arrived and was named "Rijeka". In 1998, another first plane of a new type arrived when the airline's first Airbus A319 joined the fleet. This airplane was named "Zadar". In the same year, Croatia Airlines became a member of the Association of European Airlines (AEA). By 1999, two more Airbus jets had arrived and Croatia Airlines started selling the Boeing part of their fleet. The airline flew its five millionth passenger. In 2000 two more Airbus planes arrived and an automated ticketing system was inaugurated. In 2001 the airline received maintenance and technical performing certificates from the German