Berlin Tegel Airport provided the impetus for Dan-Air to take over the failed carrier's charter contracts and to expand its own operations at Tegel. Dan-Air, one of Britain's foremost wholly private, independent airlines during the 1970s and 80s, eventually became the third-biggest operator at Tegel Airport, ahead of Air France. In addition to firmly establishing itself as the airport's and West Berlin's leading charter airline, it also operated scheduled services linking Tegel with Amsterdam Schiphol, Saarbrücken and London–Gatwick, its main operating base. By the time that airline was taken over by British Airways at the end of October 1992, it had served Tegel
Kansas City International Airport for its Municipal Airport (IATA: ICT, ICAO: KICT) after Kansas City abandoned it. However, Wichita had no luck in changing its IATA designation for the same reasons (including the forbidden "W"). In 2016, Wichita Mid-Continent was renamed Eisenhower National Airport. The downtown Kansas City airport got around the "K" restriction because it was originally called Municipal Airport and so its designation is MKC and for added incentive it was in Missouri. The "W" and "K" restrictions have since been lifted, but the IATA is reluctant to change names that have appeared on navigational charts. The "KCI" designation is also already