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Form 667 - Notification to operate aircraft on RNP 2 routes and/or RNP 1 procedures using GNSS based Area navigation

Description: 

All aircraft operating under the IFR in Australian airspace must carry serviceable Global navigation satellite system (GNSS) equipment. As part of this GNSS mandate, Performance-based navigation (PBN) is being implemented. For continental en route operations, the standard navigation specification will be Required Navigation Performance 2 (RNP 2); terminal procedures will use RNP 1 as the standard PBN navigation specification.