Berlin Tegel Airport additional aircraft stands were constructed and the building was expanded by approximately 50% of its original size, in order to handle another 1.5 million passengers per year. The extended terminal now houses a transit zone for connecting passengers which does not exist at any other terminal at Tegel Airport. Due to noise protection treaties, the overall number of aircraft stands at the airport is restricted, thus aircraft stands on the apron (serving Terminals A and D) had to be removed for compensation. Terminal C is able to handle widebody-aircraft like formerly Air Berlin's Airbus A330-200s up to the size of
Berlin Tegel Airport with the airline's transatlantic services at the latter airport, Pan Am withdrew its non-stop Tegel–JFK service at the end of the summer timetable, in October of that year. Following the cessation of direct Tegel–New York City scheduled services, Pan Am continued to operate affinity group/Advance Booking Charter (ABC) flights from Tegel to the US on an "ad hoc" basis. From the start of the 1974–75 winter season, Pan Am began operating a series of short- and medium-haul week-end charter flights from Tegel under contract to a leading West German tour operator. These flights served popular resorts in the Alpine region