Software malfunction at the air traffic control centre in Langen

A software malfunction has occurred at the air traffic control centre of DFS Deutsche Flugsicherung in Langen which might potentially lead to delays. The affected airports are Frankfurt, Cologne Bonn, Stuttgart and Düsseldorf. The safety of air traffic is not impaired.

21.03.2019.- The malfunction is caused by a system for the electronic display of flight progress strips. The technicians are working on rectifying the error. All other air navigation services systems are available without restriction. No other DFS control centres have been affected by these restrictions.

Flight progress strips provide planning information for air traffic controllers. They contain all data important for flight progress, such as aircraft type, route, expected time over, etc. In combination with radar data display, they provide essential control information for air traffic controllers.

DFS has now reduced the traffic volume within the area of responsibility of the Langen control centre to ensure that air traffic within this airspace can be handled as smoothly and as safely as possible. This is facilitated by means of air traffic flow management measures, which are organised in cooperation with the central Network Manager of EUROCONTROL  in Brussels. Large traffic flows will be shifted to fly around the airspace of Langen.

The airspace controlled by the Langen control centre reaches from Lake Constance in the south to the city of Kassel to the north. To the west, the French border forms the boundary of the Langen airspace, and to the East, the Federal State of Thuringia.

Media contact:
Ute Otterbein
Tel.: +49 (0)6103 / 707-4162

DFS Deutsche Flugsicherung GmbH, the German air navigation service provider, is a State-owned company under private law with 5,400 employees as at 31 December 2018. DFS ensures the safe and punctual flow of air traffic over Germany. Around 2,000 air traffic controllers guide up to 10,000 flights in German airspace every day, more than three million movements every year. This makes Germany the country with the highest traffic volume in Europe. The company operates control centres in Langen, Bremen, Karlsruhe and Munich as well as control towers at the 16 international airports in Germany. The subsidiary DFS Aviation Services GmbH markets and sells products and services related to air navigation services, and provides air traffic control at nine regional airports in Germany and at London Gatwick Airport and Edinburgh Airport in the UK.