JAA CNS/ATM Steering Group ICAO PBN status and its future repercussion on EASA material

1. JAA CNS/ATM Steering GroupICAO PBN status and its future repercussion on EASA material Markus Görnemann Chairman CNS/ATM StG OST, 28 November 2007

2. CNS/ATM StG • The OST tasked the JAA CNS/ATM StG to develop an overview for the different Navigation Performance Criteria and their reference in EASA/JAA material • Action from OST 06-5 Item 25 • The agreed PP044 should close this action for the CNS/ATM StG

3. ICAO DOC 9613 PBN manual

4. Background • RNP concept initially published by ICAO: Doc 9613 (RNP Manual) • RNP types only identified by an accuracy value • Lack of Airworthiness regulation or Guidance materials (except for RNP 10) • Industry has developed ED-75/DO-236 • In parallel, development of RNAVs with specific requirements in different regions of the world • ICAO decision in 2003 to set up RNPSORSG (RNP and Special Requirements Study Group)

5. Status • RNPSORSG outcome: new edition of ICAO Doc 9613 « Performance Based Navigation Manual » superseding the existing RNP Manual • Final draft posted on the ICAO website (VOL I and VOL II) • ICAO State letter dated 27th of April 07 introducing the PBN concept and providing in attachment the VOL II document only (Navigation specification)

6. PBN Manual Content • Vol 1: Concepts and Implementation Guidance Explains how a given Navigation Application (associated with COM, SUR and ATM) can support given operations in an Airspace • Vol 2: Implementing RNAV and RNP (Navigation Specifications)

7. Concepts Navigation application • Navigation Application. The application of a navigation specification and the supporting Navaid infrastructure, to routes, procedures, and/or defined airspace volume, in accordance with the intended Airspace concept. • Navigation Specification.  A set of aircraft and air crew requirements needed to support Performance based navigation operations within a defined airspace. There are two kinds of navigation specification: RNAV and RNP: • RNP X: A navigation specification with an On-board Performance Monitoring and Alerting function • RNAV X: A navigation specification without an On-board Performance Monitoring and Alerting function “X” refers to the lateral navigation accuracy in Nm (95%) Navigation specification NAVAID infrastructure Performance Based Navigation Concept RNP system = RNAV system + On Board Performance Monitoring and Alerting

8. Overview of navigation specifications (1/2)

9. Overview of navigation specifications (2/2)

10. PBN manual publication repercussion on EASA/JAA materials (1/4) • ICAO PBN manual is the most recent document addressing airworthiness and operational criteria • It includes up to date requirements and/or clarifications • In particular those related to recent in service experience and those related to harmonisation with other Authorities (mainly with FAA). • After a first assessment most of AMC/TGL are consistent with the PBN manual except TGL 10 for P-RNAV and the lack of an AMC for RNP 4 and for Basic-RNP 1.

11. PBN manual publication repercussion on EASA/JAA materials(2/4)

12. PBN manual publication repercussion on EASA/JAA /EU Community materials (3/4) • PBN repercussions are not significant on EASA materials but general discussions are necessary to prepare the future: 1- What is the role of the RNP RNAV MASPS (DO-236/ ED-75) taking into account the PBN manual publication? Should this standard be amended to be in line with this document? 2- Should future “RNAV” AMCs be only a reference to PBN navigation specification or should AMCs still need to include all the details (stand-alone document)? 3- Should EU-OPS 1 (e.g. 1.243 and 1.865) be amended to reflect the PBN manual in particular in terms of terminology used?

13. PBN manual publication repercussion on EASA/JAA materials (4/4) • In addition, if ICAO issues in a close future a Navigation Specification for Advanced RNP 1, EASA will have to decide on the development of the corresponding EASA materials because it could be an enabler for the future European navigation scheme

14. Proposed recommendations (1/2) The following aspects, should be addressed: • Review and, where necessary, propose update to EU-OPS to ensure requirements for RNAV and RNP operations are consistent with the ICAO PBN manual • Review existing RNAV TGL/AMC and, where necessary, update these documents (e.g. P-RNAV) • Issue, when there is an operational need (e.g. RNP 4), an AMC addressing the related ICAO Navigation Specification. EASA should decide if the AMC content is only a reference to the ICAO Navigation Specification or if it includes all the details (cut and paste of the ICAO Navigation Specification plus refinement if necessary)

15. Proposed recommendations (2/2) The following aspects, should be addressed: • Consider the development of EASA material corresponding to a future ICAO Navigation Specification for Advanced RNP 1

16. PBN Database • Database developed under the sponsorship of CAA-UK, Cranfield University and the Guild of Air Pilots and Air Navigators • It contains definitions and abbreviations used in regulatory material for Performance Based Navigation (ICAO, FAA, EASA, JAA, RTCA, …) • Use is Free of Charges • Aims at people involved in the writing of rules, regulations and guidance material to harmonise the definitions and terms used in future documents

17. Update on theJAA CNS/ATM Steering Group Markus Görnemann Chairman CNS/ATM StG OST, 28 November 2007

18. Current topics • Overview on different RNP requirements • Position Paper on RNP 4 • Discussion on the extension of the LOA concept for Terrain and Obstacle databases • Aircraft operation without ADF • Certification considerations for the use of ADS-B Out systems for non radar-like applications • Certification considerations for the use of ADS-B In systems • Discussion about future of the CNS/TAM StG