o The operational requirements contribute to the overall Target Level of Safety (TLS)
. The interpretation of this contribution is not harmonized between FAA and EASA.
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2. Background
Getting to grips with RNP AR
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SAAAR operations was first introduced in the USA to develop “private” or “tailored” procedures based on a temporary FAA Notice (8000.287/300). In a later stage FAA has developed “public” SAAAR procedures design criteria (FAA Order 8260.52) and the associated operational specification (FAA AC90-101). These procedures are “public” as they are published and available to all operators with a special authorization. This does not prevent an operator from developing “private” or “tailored” SAAAR instrument procedures with more flexible criteria, provided the concurrence of FAA or the relevant national authorities is obtained.
The ICAO, which has first introduced the RNP concept in the Manual for Required Navigation Performance (DOC 9613), has developed a new document called Performance Based Navigation (PBN) manual to address RNAV/RNP operations including RNP operations with Authorization Required (RNP AR). This manual is planned to replace ICAO DOC 9613. ICAO OCP (Obstacle Clearance Panel now called IFPP for Instrument Flight Procedure Panel) has published a final draft (2008) of a document called RNP AR Procedure Design Manual with some inputs from aircraft manufacturers, EASA and other regulatory authorities. RNP AR Departures have been developed and are used although there is no published criteria for the time being (early 2008) to design such departures. Procedures designers have developed their own criteria based on the missed approach criteria of the FAA Order.
This brochure is based on the documents published by the FAA for “public” RNP AR (SAAAR) operations and the ICAO PBN Manual.
2.1. REFERENCES
ICAO DOC 9613 MANUAL FOR REQUIRED NAVIGATION PERFORMANCE
ICAO PERFORMANCE BASED NAVIGATION MANUAL
ICAO OCP (now IFPP) REQUIRED NAVIGATION PERFORMANCE AUTHORIZATION REQUIRED, PROCEDURE DESIGN MANUAL
ICAO OCP (now IFPP) DOC 8168 PANS OPS
FAA Order 8260.52 UNITED STATES STANDARD FOR REQUIRED NAVIGATION PERFORMANCE (RNP) APPROACH PROCEDURES WITH SPECIAL AIRCRAFT AND AIRCREW AUTHORIZATION REQUIRED (SAAAR)
FAA AC90-101 APPROVAL FOR REQUIRED NAVIGATION PERFORMANCE (RNP) PROCEDURES WITH SPECIAL AIRCRAFT AND AIRCREW AUTHORIZATION REQUIRED (SAAAR)
FAA AC20-129 AIRWORTHINESS APPROVALNAVIGATION SYSTEMS FOR VERTICAL
ED 75 / DO236 MINIMUM AVIATION SYSTEM PERFORMANCE STANDARDS: REQUIRED NAVIGATION PERFORMANCE FOR AREA NAVIGATION
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