The Ryanair subsidiary hangs up its shoes - and also the air transport operator certificate. The airline is now returning this to the Austrian civil aviation authority. The operating license is also returned to the responsible ministry. In the last few months the company has closed its 4 bases in Stuttgart, Düsseldorf, Vienna and Palma. The company, which now has neither aircraft nor flight crew, continues to offer the Ryanair Group some limited administrative services from its Schwechat office.