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Survey flights

on the night of November 24-25

Published: 17 November 2025, 14:00

Survey flights by German Air Traffic Control (DFS) have been announced for the night of 24 to 25 November on the north runway at BER. A relatively quiet, twin-engine Beechcraft Super King Air 350 propeller aircraft will be used for this purpose. The survey flights will take off and land in a westerly direction, with certain regions being flown over frequently in succession and at low altitude. Overflights of towns and villages will be avoided as far as the specified flight profiles allow.

During the survey flights, the instrument landing system (ILS) of the runway will be checked for accuracy and proper functioning. The ILS assists pilots in their daily flight operations by providing navigation assistance during the approach. This is essentially done by signal transmitters on the ground, which send information about the approach course and glide angle to the aircraft's cockpit during landing.

BER runway

The specially equipped survey aircraft checks the accuracy of the signals required for safe landings. As usual, the survey flights take place at night, as air traffic does not allow this during the day and the ILS cannot be used operationally during the flight survey.

The flights are therefore generally exempt from night flight restrictions. The measurement of the ILS is prescribed at regular intervals by the International Civil Aviation Organisation (ICAO).

 

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