Document ID: chunk:federal_register_of_legislation:F2006B10849:body:0:p1
Version: federal_register_of_legislation:F2006B10849
Segment Type: other
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Character Range: 4–4921

Instruments and Automatic Pilots

                       AIRWORTHINESS DIRECTIVE

    For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/INST/45 Honeywell Air Data Inertial Reference Units 6/2000 DM

               Applicability: Honeywell air data inertial reference units (ADIRU) having a serial number below 0841 and a part number (P/N) listed below:

Aeroplane Manufacturer   Model                                                                                                                                                                                                                                                                                   ADIRU P/N
Boeing                   757-300                                                                                                                                                                                                                                                                                 HG2050AC02
                         737-600                                                                                                                                                                                                                                                                                 HG2050AC03
                         737-700                                                                                                                                                                                                                                                                                 HG2050AC04
                         737-800                                                                                                                                                                                                                                                                                 HG2050AC05
Airbus                   A319-111, A319-112, A319-113, A319-114, A319-131, A319-132, A320-111, A320-211, A320-212, A320-214, A320-231, A320-232, A320-233, A321-111, A321-112, A321-131, A330-202, A330-301, A330-223, A330-321, A330-322, A330-323, A340-211, A340-311, A340-212, A340-312, A340-213, A340-313  HG2030AD09
Airbus                   A330-202, A330-301, A330-223, A330-321, A330-322, A330-323, A340-211, A340-311, A340-212, A340-312, A340-213, A340-313                                                                                                                                                                  HG2030AD10

                 Requirement: 1. Inspect the identification plate of the ADIRU to determine its modification status, in accordance with Honeywell Alert Service Bulletin (ASB) HG2030AD-34- A0009 (for an ADIRU having P/N HG2030AD09 or HG2030AD10) or ASB HG2050AC-34-A0008 (for an ADIRU having P/N HG2050AC02, HG2050AC03,
                 HG2050AC04, or HG2050AC05), both dated 9 March 2000; as applicable.

                 2.    If any ADIRU having P/N HG2050AC02, HG2050AC03, HG2050AC04, or HG2050AC05 is not marked as modification 2 or 3 replace the ADIRU with an ADIRU specified in either Requirement 2.a. or 2.b. below, in accordance with Honeywell ASB HG2050AC-34-A0008, dated 9 March 2000.
 COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

                1. Replace with an ADIRU that has P/N HG2050AC03, HG2050AC04, or HG2050AC05; and that is marked as modification 2 or 3;

             Or,

b.    Replace with a serviceable ADIRU that has P/N HG2050AC03, HG2050AC04, or HG2050AC05; and that is not marked as modification 2 or 3; and that has been determined to have accumulated less than 7,000 hours time in service in accordance with the ASB.

             3.    If any ADIRU having P/N HG2030AD09 or HG2030AD10 is not marked with modification 3 or 6, replace the ADIRU with an ADIRU specified in either Requirement 3.a. or 3.b. below, in accordance with Honeywell ASB HG2030AD- 34-A0009, dated 9 March 2000.

                1. Replace with an ADIRU having P/N HG2030AD09 or HG2030AD10 that is marked as modification 3 or 6;

             Or,

b.    Replace with a serviceable ADIRU having P/N HG2030AD09 or HG2030AD10 that is not marked as