1. Data Link Convergence ICAO DLSG and ADG Activities ICAO ACP 5 July 2006 José Roca CASCADE Deputy Programme Manager jose.roca@eurocontrol.int

2. Contents Data Link Convergence ProblemSolution StrategyGroupsIssues ADS-C

3. The Problem Convergence Problem EUR Data Link Mandate NAT Data Link Mandate Current Trials and Implementation Aircraft?

4. Step 3 Converged Single System Step 2 ATN Accomodation Step 1 FANS-1/A Accomodation Solution : 3 Step Strategy

5. ICAO Groups ICAO Convergence Groups DLSG ADG NAT FIG

6. EUR/NAT Data Link Steering Group DLSG ICAO DLSG created Under ICAO EUR/NAT Office Wide representation (UK, FR, PT, US, IS, Airbus, Boeing,…) Tasked to develop a harmonised data link service First meeting March 2005 Workshop Action Plan: Consistent with 3 steps strategy Second meeting October 2005 Creation of the ATN accommodation Drafting Group Work on future systems (Step 3)

7. ATN accommodation Drafting Group ADG Purpose: to study the accommodation of ATN aircraft (i.e. ED110A compliant) in the FANS-1/A environment Tasks To agree a list of technical and operational issues which could prevent accommodation of ATN aircraft in FANS-1/A airspace, and develop a set of potential resolutions to those issues. To develop a specification for a trial in a FANS-1/A environment (e.g. NAT) in order to validate the potential resolutions identified in the previous task. Develop a draft interoperability specification for the accommodation of ATN aircraft in FANS-1/A airspace for input into RTCA SC189/Eurocae WG53.

8. ADG Progress First Meeting April 2006 IRRF Approach Accepted Main Outcome: Identification of all known issues that could potentially prevent an ATS Provider from accommodating ATN equipped aircraft Second meeting June 2006 Main outcome: Formulation of potential resolutions to the issues identified Several issues identified to be reported to the DLSG

9. ADS-C Application Issue Current ADS-C SARPs version Meets most requirements but has shortcomings Airlines do not support it Improvement proposals available ADG Proposed Solution Improve ADS-C application if it is done by June 2007 Working Arrangements to be defined and accepted by DLSG ACP Coordination key element

10. Proposed ACP coordination Chairman of SG-N2 of the ACP WG-W joins the ADG. ADG material fed back to ACP for approval.

11. ADG Statement The ADG supports the publication of the ADS-C SARPS in their current from at this moment.

12. Thank You