GM3 ATS.TR.155(c)(7) ATS
surveillance services
ED Decision 2020/008/R
ATS
SURVEILLANCE SYSTEM FAILURE — DATA DEGRADATION
In order to reduce the impact of a degradation of aircraft position source data (for example, a receiver autonomous integrity monitoring (RAIM) outage for GNSS), the air traffic services provider should establish contingency procedures to be followed by air traffic services units in the event of data degradation.
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