Niki A320 near Vienna on Jan 31st 2014, loss of cabin pressure

A Niki Airbus A320-200 on behalf of Air Berlin, registration OE-LEE performing flight AB-8813 from Vienna (Austria) to Dusseldorf (Germany), was enroute at FL370 about 150nm northwest of Vienna (Austria) in Czech Airspace southwest of Prague, when the crew donned their oxygen masks and initiated an emergency descent (average rate of descent at 3900 fpm) to FL100 due to problems with a window and the loss of cabin pressure. The aircraft returned to Vienna for a safe landing on runway 11 about 60 minutes after leaving FL370.

A replacement Airbus A320-200 registration OE-LEX reached Dusseldorf with a delay of 3.5 hours.