GMGuidance material
GM1 to AMC1 ATS.TR.210(c) Operation of air traffic control service
SEPARATION APPLICATION IN CASE OF ATS SURVEILLANCE SYSTEM FAILURE As an emergency measure, in the event of complete failure of the ATS surveillance system where air-ground communications remain, the use of flight levels spaced by half the applicable vertical separation minimum may be resorted to temporarily if standard procedural separation cannot be provided immediately.
GM — Regulation (EU) 2017/373 · ED Decision 2020/008/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025