GM2 ATS.TR.155(c)(7) ATS
surveillance services
ED Decision 2020/008/R
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.
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