9.
DESIGN, DEVELOPMENT AND APPROVAL OF AIRCRAFT MODIFICATIONS
9.1 Compliance
9.1.1 When utilising this guidance material for the approval of an ADS-B installation, in accordance with Regulation 35 of CAR 1988 or a Supplemental Type Certificate under CASR Subpart 21.E, the following need to be considered:
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The applicant will need to submit, to CASA, a compliance statement that shows how
the criteria of this guidance material has been satisfied, together with evidence resulting
from the activities described in this section.
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Compliance with the airworthiness requirements for intended function and safety may be demonstrated by equipment qualification, safety analysis of the interface between the ADS-B equipment and data sources, equipment cooling verification and ground tests. To support the approval application, design data will need to be submitted showing that the requirements for ADS-B operation have been complied with.
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The safety analysis of the interface between the ADS-B system and its data sources should show no unwanted interaction under normal or fault conditions.
9.1.2 FAA AC 120-86 provides additional guidance by providing general information and acceptable methods of compliance for the certification, airworthiness, and operational approval of certain aircraft surveillance systems and selected associated aviation applications.
9.1.3 A self-evaluation checklist to assist in determining compliance is included at Appendix C to this AC.
9.2 Ramp Test
9.2.1 The functionality for ADS-B “out” application may be demonstrated by ground testing, using ramp test equipment where appropriate, that verifies:
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system operation;
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the aircraft derived data in the transmitted messages including integrity data; and
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functioning of system fault detectors if any fitted.
9.3 Equivalent Installations
9.3.1 A current list of approved equipment can be found at Appendix D.
9.4 Flight Manual
9.4.1 The Aircraft Flight Manual (AFM) or the Pilot’s Operating Handbook (POH), whichever is applicable, should provide at least the following information:
11 April 2007
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A statement that the transponder system(s) complies with the criteria of ICAO Annex 10 Amendment 77 regarding extended squitter and any necessary procedures for expected operations (e.g. the need to enter Flight ID) for use with ATC.
9.5 Minimum Equipment List (MEL)
9.5.1 The MEL should indicate that ADS-B OUT is not mandatory (at this time).
9.6 Maintenance
9.6.1 Maintenance tests should include a periodic verification check of aircraft ADS-B data including the ICAO 24 bit aircraft address (colloquially known as the 24-bit Mode S address) using suitable ramp test equipment. A check of the ICAO 24 bit aircraft address should be made in the event of a change of the registration mark of the aircraft (this is especially necessary following change in State of registration) or whenever a transponder is replaced.
9.6.2 Where possible, maintenance tests should check the correct functioning of system fault detectors (if any).
9.6.3 The maximum period between ADS-B maintenance tests of the ADS-B transmitter should be the same as for ATC transponders and all transponders fitted to the aircraft should be checked.
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