Document ID: chunk:federal_register_of_legislation:F2006B10198:body:0
Version: federal_register_of_legislation:F2006B10198
Segment Type: other
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 GAF N22 and N24 Series Aeroplanes

 AD/GAF-N22/50
 Amdt 2

 Fin Attachment Fittings 11/89

            Applicability: All Nomad N22 and N24 series aeroplanes which do not incorporate modification N602 together with either modification N600A or N600B.

             Requirement: 1. Action in accordance with ASTA Alert Service Bulletin ANMD-55-23, dated 27 June 1989.

             2. Action in accordance with GAF Service Bulletin NMD-53-5 and GAF Service Bulletin NMD-55-21.

            Note: Compliance with Requirement 2 constitutes terminating action for Requirement 1.

             Compliance: 1. Not later than the first issue of a Maintenance Release after 30 November 1989, unless Requirement 2 has been accomplished.

            2. Before exceeding 3000 hours component time in service.

            Background:  The original retirement life of 3000 hours was promulgated based on fatigue analysis. Recent service experience of pre-mod N331 aircraft has revealed that the original bolt P/N 2/N-00-43 may be susceptible to cracking before reaching 3000 hours component time in service. This Amendment calls up a bolt replacement as an interim alternative to incorporating modification N600A or N600B.