ARINC 424 A specification and SESAR WP 9

ARINC 424 A specification and SESAR WP 9. 31 AIXM Procedure Modelling/Encoding seminar Brussels – 01/02 Sept 2010 Hubert LEPORI Eurocontrol AIM Unit The European Organisation for the Safety of Air Navigation

Arinc 424 specification • 70’s: development of the first Flight Management Systems (FMS) • Need for more an more complex embedded navigation databases to support evolving navigation techniques… AI P Navigation data AIP Arinc 424 ARINC 424 A specification and SESAR WP 9. 31 2

Arinc 424 specification • Arinc 424: “Navigation System Data Base” • sets forth the air transport industry’s recommended standards for the preparation of airborne navigation system reference data files. • Version 1 published in May 1975 • Version 19 published in December 2008 – applicable today • Arinc 424 committee • 1 regular meeting per year to discuss on A 424 change proposals ARINC 424 A specification and SESAR WP 9. 31 3

Arinc 424 specification • The Arinc 424 specifies a format of navigation (and communication) data. • Plain text - lines of 132 alphanumeric characters • Navigation data: Airports, Runways, Navaids, Procedures • Communication data: Com Services (ATIS…) • The Arinc 424 scope is not restricted to FMS data – it also includes data for Flight Planning systems, Simulation tools… ARINC 424 A specification and SESAR WP 9. 31 4

Arinc 424 specification A 424 -A Section 4 A 424 -A Section 5 SEURP EBBREB BRU[…………. ]BRUSSELS ZAVENTEM ARINC 424 A specification and SESAR WP 9. 31 000000310 5

Arinc 424 specification • A 424 P/T are referenced in ICAO Performance-Based Navigation Manual ARINC 424 A specification and SESAR WP 9. 31 6

The current A 424 data chain … 24 A 4 AI AIP FMS suppliers Data providers P ANSPs $$ $$ … ARINC 424 A specification and SESAR WP 9. 31 7

NDBX concept / Arinc 424 -A • Since 2006, a technical group formed inside AEEC has been studying the feasibility to define and standardize an open source format for embedded navigation databases => NDBX • based on the content of Arinc 424 v. 19 but restricted to FMS perimeter • relying on a new UML model and on XML & Binary XML representation of the data • In 2008, the decision was taken by the AEEC to merge the existing Arinc 424 specification and the NDBX standard => Arinc 424 -A ARINC 424 A specification and SESAR WP 9. 31 8

Arinc 424 -A : the big picture Input for the definition of ARINC 424 -A content NDBX ARINC 424 -19 ARINC 424 -A Model UML “Bijection” between original A 414 -19 and Arinc 424 -A ASCII ARINC 424 -A formats (Embedded format Requirements) ARINC 424 A Script 1 Visual Basic ARINC 424 A ASCII (Legacy Format) ARINC 424 A specification and SESAR WP 9. 31 Script 2 TBD Full ARINC 424 A XML Adapted ARINC 424 XML ? ARINC 424 A BXML (embedded XML) 9

The future A 424 A-NDBX data chain (? ) ANSPs A 4 B- 24 A XM L P AI AIP … New generation of Avionic Systems Data providers $$ … ARINC 424 A specification and SESAR WP 9. 31 10

Eurocontrol’s involvement in Arinc 424 A • 2006 -2007: Eurocontrol participated in the initial NDBX committee and shared AIXM experience with the group • 2007 -2009: A Business Rules Working Group was formed inside the NDBX Committee, led by Eurocontrol and tasked with the development of an initial set of validation rules. • 2010 -2012: Eurocontrol continues to support the development of the A 424 A specification through its contribution to SESAR project 9. 31. ARINC 424 A specification and SESAR WP 9. 31 11

SESAR WP 9. 31 “Aeronautical Databases” • Scope of WP 9. 31 • Structure and content of Navigation, Airport, Terrain & Obstacle DB • Evolutions of the database production chain (focus on data integrity, performance…) • WP 9. 31 includes some interaction with the ARINC 424 A standardisation group for the integration of new navigation database requirements ARINC 424 A specification and SESAR WP 9. 31 12

SESAR WP 9. 31 “Aeronautical Databases” • 2010: Produce business rules for Arinc 424 -A, following the methodology used for the AIXM 5. 1 business rules • 2010 -2012: Definition of Global Database Management Process - Regulatory framework - Identify the most effective means to ensure data integrity - Recommendations for DB packing, verification, certification Practically – validation of Nav. DB chain Define a set of mapping rules for conversion of ground sources (AIXM 5. 1) into Arinc 424 A data (2011) End User validation ARINC 424 A UML/XML/BXML ARINC 424 A specification and SESAR WP 9. 31 FMS Simulation 13

Questions ? ARINC 424 A specification and SESAR WP 9. 31 14