Technical failure of radio systems remedied

Langen air traffic control operating normally again

21.12.2015.- In the late morning, the DFS Langen control centre experienced a technical problem in its communications systems.
The Langen control centre monitors the lower airspace over southwestern German, including the approaches and departures for the airports of Frankfurt, Stuttgart, Cologne Bonn, Düsseldorf and Münster Osnabrück.

The technical problem was remedied after a short time. All systems have been operating at their full capacity since 12:25 hrs.

The safety of air traffic was ensured at all times and a back-up system was used for radiotelephony. As a precautionary measure, capacity was adjusted to the situation, resulting in some temporary delays.


DFS Deutsche Flugsicherung GmbH, the German air navigation service provider, is a State-owned company under private law with 5,750 employees as at 30 June 2015. 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, and about 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 16 control towers at international airports in Germany. In addition, DFS is represented at the EUROCONTROL Control Centre in Maastricht, the Netherlands. Additional areas of activity include consulting, provided by the Aeronautical Solutions division, and aeronautical data, grouped in the Aeronautical Information Management division.