Air navigation obstacles


Obstacles to aviation are installations such as buildings, antennas, towers, cranes, cable cars, wind turbines, high-voltage power lines, cranes and construction machinery, etc., but also plants (especially trees) that may pose a hazard to aviation because of their location or height. To ensure safety in aviation, such installations and plants must be registered and publicised before they are erected. Some must be marked or lit and those requiring a permit must undergo a special inspection.

Air navigation obstacles must be registered via the Aviation Data Collection System (DCS).


Further information


Aviation Data Collection System (DCS)

ITV Consult AG on behalf of FOCA

Tel. DCS: +41 (0)44 871 21 99

Print contact

Portal DCS

Bild Link DCS Portal

Pilot message Obstacle

Federal Geoportal - Aviation Topic (WeGOM)