During en-route phase, what is the ATS reporting requirement for RAIM loss?

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Multiple Choice

During en-route phase, what is the ATS reporting requirement for RAIM loss?

Explanation:
When GPS RAIM integrity may be lost, controllers need to know if that loss will last long enough to affect navigation reliability. The rule is that ATS reporting is required when a RAIM loss is predicted to persist for more than five minutes. That five-minute threshold helps separate brief, inconsequential degradations from more significant outages that could impact position accuracy and routing decisions. If the outage is expected to last longer than five minutes, inform ATS so they can plan contingencies or adjust operations; shorter outages don’t require the report.

When GPS RAIM integrity may be lost, controllers need to know if that loss will last long enough to affect navigation reliability. The rule is that ATS reporting is required when a RAIM loss is predicted to persist for more than five minutes. That five-minute threshold helps separate brief, inconsequential degradations from more significant outages that could impact position accuracy and routing decisions. If the outage is expected to last longer than five minutes, inform ATS so they can plan contingencies or adjust operations; shorter outages don’t require the report.

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