CTHRepealedLegislation
Civil Aviation Order 20.91 (Instructions and directions for performance-based navigation) 2012
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Civil Aviation Order 20.91 (Instructions and directions for performance-based navigation) 2012
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Turn the raw legal text into a practical explanation grounded in Civil Aviation Order 20.91 (Instructions and directions for performance-based navigation) 2012.
18 GNSS updating
18.1 Before an RNP AR operation commences, GNSS updating must be operating and such operation confirmed.
18.2 Unless the AFM requires otherwise, if GNSS updating is lost during an approach, the approach may be continued if the navigation system continues to provide a solution consistent with the selected RNP.
Note The AFM may require an approach to be discontinued in the event of a loss of GNSS updating in which case the approach must be discontinued.