ED Decision 2021/003/R
USE OF AIRCRAFT TRANSPONDER
The transponder operating procedures and the relevant information that need to be sent to the aeronautical information services provider for publication in the AIP should include:
— the phases and areas of the aerodrome at which the transponder needs to be used when an aircraft is on the movement area of the aerodrome; and
— measures to prevent causing false ACAS II Resolution Advisories to airborne aircraft in the vicinity of the aerodrome.
Such information should be published in the local aerodrome regulations in the AIP, following coordination with the Competent Authority. Until the publication of the information in the AIP, the aerodrome operator may additionally request the broadcast of relevant information via the local automated terminal information service (ATIS).
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