Berlin Tegel Airport European headquarters from Frankfurt to Berlin on 1 May 1984. Pan Am began introducing widebodied aircraft on its Berlin routes in the mid-1980s. Up to four Airbus A300s replaced 727-200s on Berlin–Frankfurt. The A300s were subsequently replaced with Airbus A310s. The longer-range A310-300s that joined Pan Am's fleet from 1987 enabled reintroduction of non-stop, daily Tegel–JFK scheduled services. Pan Am Express, the regional commuter arm of Pan Am, began operating from Berlin Tegel in November 1987 with two Avions de Transport Régional (ATR) 42 commuter turboprops. It operated year-round scheduled services to secondary and tertiary destinations that could not be
Detroit Metropolitan Airport the county expanded the airport to become Detroit's primary airport. It renamed the facility Detroit-Wayne Major Airport in 1947, and in the next three years expanded threefold as three more runways were built. In 1949, the airport added runways 3L/21R and 9L/27R, followed by runway 4R/22L in 1950. In 1946–47, most airline traffic moved from the cramped Detroit City Airport (now Coleman Young International Airport) northeast of downtown Detroit to the larger Willow Run Airport over west of the city, and west of Wayne County Airport. Pan-Am (1954) and BOAC (1956) were the first passenger airlines at Detroit-Wayne Major. In