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Project AS 09/11 - Amendment of Civil Aviation Orders to revise the specification of technical standards and compliance timing for aircraft ADS-B equipment configurations.

Topic code: 
Airspace and Aerodromes
Project status: 
Closed

Project Closure Notes

This project has been completed with the publishing of the following instruments. These instruments operate in combination to impose new standards for the use of ADS-B transmitting equipment on all Australian aircraft and on all foreign aircraft in Australian territory.

CASA 521/09 - Direction - Use of ADS-B in foreign aircraft engaged in private operations in Australian Territory

CAO 20.18 Amendment Order (No 3) 2009 (Aircraft Equipment - basic operational requirements)

CAO 82.1 Amendment Order (No 2) 2009 (Conditions on Air Operator's  Certificates authorising charter operations and aerial work operations)

CAO 82.3 Amendment Order (No 3) 2009 (Conditions on Air Operator's Certificates authorising regular public transport operations in other than high capacity aircraft).

CAO 82.5 Amendment Order (No 3) 2009 (Conditions on Air Operator's Certificates authorising regular public transport operations in high capacity aircraft)

 

Issue

The proposed amendments are to the following Civil Aviation Orders and Legislative Instrument:

  • CAO 20.18 paragraph 9B and Appendix XI;
  • CAO 82.3 Appendices 6 and 7;
  • CAO 82.5 Appendices 4 and 5;
  • Instrument No CASA 41/09 dated 27 February 2009.

The proposed regulatory amendments represent a minor change which can be categorised as a 'minor machinery in nature" change.

The proposed amendments are to the technical standards that CASA has specified in CAO 20.18 Appendix XI for GNSS position source equipment that provides the aircraft positional and velocity data that is interfaced to, and transmitted by, aircraft ADS-B equipment, for use by ATC for surveillance. CASA has taken account of recent information on equipment availability, and on representations and information from a number of sources (affected airlines, aircraft and avionics manufacturers, IATA, as well as information presented at ICAO APAC Meetings (ADS-B SITF/8 held in Hanoi in May 2009 and the CNS/MET SG/13 held in Bangkok in July 2009) concerning:

  • the proposed retention by airlines of certain airline aircraft types that were previously planned to be retired prior to mid-2012;
  • the availability and timing of retrofit kits to equip current airline aircraft with certified GNSS + ADS-B equipment installations meeting the existing Australian standards;
  • the time and scheduling necessary for airlines to instal the retrofit kits to existing aircraft during major maintenance;
  • the desire to harmonise with the intentions for compliance timings of other leading ICAO APAC States;
  • the need for a more specific statement of technical requirements in respect to GNSS equipment, as it has become apparent that some manufacturers and operators are not exactly sure of our requirements in relation to the final standards for the GNSS position source equipment. (While these technical standards have previously been stated in CASA AC 21-45, the intention is to now explicitly specify them within the regulatory material.)

The proposed amendment will also change the date of compliance with the technical standards (see paragraph 3 of CAO 20.18 Appendix XI). The revision will establish just one date for compliance with ADS-B fitment and GNSS technical requirements.

In summary, the proposed amendment is:

  1. a widening and more explicit specification of the existing technical standards for GNSS position source data for ADS-B transmission; and
  2. an extended period of the time for compliance with the technical standards for GNSS position source equipment.

This represents a relaxation of the existing requirement in the Orders and the Instrument.

ADS-B is used for ATM; the project will therefore be closely co-coordinated with technical specialists in Airservices Australia.

The amendments will neither increase the cost nor impose any additional technical requirements on aircraft operators over existing requirements in the Orders.

Project Objective

Provide a more explicit specification of technical standards for GNSS position source for aircraft ADS-B installations and extend the date for compliance with those technical standards.

Status

This project was approved by Peter Boyd, Executive Manager, Standards Development and Future Technology Division on 4 August 2009.

Project management

Project Leader: Brian Harris, Airways Engineer, Airways & Aerodromes Branch, Airspace and Aerodromes Regulation Division

Project Stakeholder: Peter Cromarty, Executive Manager, Airspace & Aerodrome Regulation Division

RDMB Program Manager: Nick Fisher

Project Priority

High. It is necessary to make the amendment in the next 2-3 months in order to provide airlines and airframe manufacturers with assurance of CASA's intention on ADS-B technical equipage standards and compliance training. Such assurance is necessary to provide airlines and other operators with the necessary lead-time to undertake retrofit installations on existing aircraft.

Airspace and Infrastructure Users Group (SCC)

Airspace and Infrastructure Users Group Sub-committee

History

Title Details Date
Consultation updates in 2010
Project AS 09/11 - Amendment of Civil Aviation Orders to revise the specification of technical standards and compliance timing for aircraft ADS-B equipment configurations. This project is now closed

See project closure notes.
21 Jan 2010
Consultation updates in 2009
Project AS 09/11 - Amendment of Civil Aviation Orders to revise the specification of technical standards and compliance timing for aircraft ADS-B equipment configurations. Project approved. 5 Aug 2009