Navigate / EASA

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.