Document ID: chunk:federal_register_of_legislation:F2006B01894:body:0
Version: federal_register_of_legislation:F2006B01894
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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 CASR 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.

 Airbus Industrie A319, A320 and A321 Series Aeroplanes

 AD/A320/149 Inertial Reference Systems 9/2003
DM

            Applicability: All Model A319, A320 and A321 series aeroplanes, all manufacturing serial numbers (MSN) equipped with Honeywell inertial reference system (IRS) having the following part numbers (P/N) but without Airbus Industrie modification 30652, 30941 or 30942 incorporated:

                HG1150AC05 HG1150AC06 HG2030AC05 HG2030AC06

             HG2030AC08 HG2030AC09 HG2030AD09

            Requirement: Incorporate Temporary Revision (TR) 2.05.00/52 into the Aircraft Flight Manual (AFM). TR 2.05.00/52 introduces an operational limitation which prohibits 'AUTOLAND' and 'ROLL-OUT' at the following airports from the date indicated:

Airport

          Airport Location Year Month

 Airbus Industrie A319, A320 and A321 Series Aeroplanes

 AD/A320/149 (continued)

GVAC   Sal Amilcar Cabral - Cape Verde      2006   Apr
EGAA   Belfast Aldergrove - United Kingdom  2006   May
EINN   Shannon - Ireland                    2006   May
EIDW   Dublin - Ireland                     2006   Jul
SAEZ   Buenos Aires Ezeiza - Argentina      2006   Jul
EGPF   Glasgow - United Kingdom             2006   Aug
EICK   Cork - Ireland                       2006   Sep

            CAT II approaches without 'AUTOLAND' are still permitted.

            Note: DGAC AD 2003-270(B) refers.

            Compliance: As of the effective date of this Directive until Airbus Industrie Service Bulletins (SB) A320-34-1231 or A320-34-1249 or A320-34-1240, which install IRS P/N
            HG1150AC07, P/N HG2030AD11 and P/N HG2030AC11 respectively, have been embodied.

            This Airworthiness Directive becomes effective on 2 August 2003.

            Background: The magnetic variation tables, which are implemented in the Honeywell IRSs identified in the applicability statement, are obsolete in certain countries.

            Studies have shown that, for a given airport, a difference greater than 3° between the real magnetic deviation and the one implemented in the inertial reference system could lead to an unsafe situation during the phases of CAT II or III automatic landing and roll out.

            This Directive effectively limits the use of 'AUTOLAND' and 'ROLL-OUT' at certain airports until IRSs are replaced.

 Jim Coyne
 Delegate of the Civil Aviation Safety Authority 23 July 2003

 The above AD is notified in the Commonwealth of Australia Gazette on 30 July 2003.