Air Berlin (1991) (Berlin Tegel) has requested for approval by the German antitrust authorities to be allowed to take a minority stake in IzAir (Izmir Adnan Menderes). The Turkish carrier is owned by Air Berlin shareholder ESAS holding (which also controls Pegasus Airlines (PC, Istanbul Sabiha Gökcen)) and operates the B737-800s of Air Berlin Turkey (Antalya). It has recently returned its remaining three A319-100s to the lessors.