The advent of performance-based navigation (PBN) is having a major impact on all aspects of the aviation industry, with PBN routes and procedures being introduced more widely. As part of a continuing effort to streamline inconsistencies resulting from the emergence of PBN, ICAO has introduced measures to align the procedure approach chart identification with the designation of the navigation specification.
Specifically, ICAO intends to transition from the area navigation (RNAV) global navigation satellite system (GNSS) Runway XX naming convention, to RNP Runway XX. The UK’s plan to adopt this naming convention is described within AIC Y 140/2019. The purpose of this SI to the Radiotelephony Manual (CAP 413) is to introduce the revised nomenclature and phraseology for PBN instrument approach procedures.