COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 727 Series Aeroplanes AD/B727/118 Amdt 1 Structural Modification Program 6/95 Applicability: All model B727 aircraft listed in Boeing Document D6-54860, "Ageing Aircraft Service Bulletin Structural Modification and Inspection Program - Model 727" Revision G, dated March 5, 1993. Requirement: 1. Modify in accordance with Boeing document D6-54860 Revision G, Section 3. 2. Modify in accordance with Boeing Document D6-54860 Revision G, Appendices A.3, B.3 and C.3. Note: FAA ADs 90-06-09 and 94-05-04 refer. Compliance: 1. Modify in accordance with the incorporation thresholds listed in Requirement Document Section 3 or before 17 April 1994, whichever is the later. Modifications for which the incorporation threshold is identified as a specific date shall be accomplished at that date. The compliance for Requirement 1 is unchanged from the original issue of this AD. 2. Modify in accordance with the incorporation thresholds listed in Requirement Document Appendices A.3, B.3 and C.3 or before 25 May 1999, whichever is the later. Background: The FAA sponsored Ageing Fleet Conference was tasked with identifying and implementing procedures to ensure the continuing airworthiness of high time aircraft. This AD requires modifications in lieu of those inspections which were considered to not be as effective as desired. The initial issue of this AD referenced FAA AD 90-06-09. This amendment also references FAA AD 94-05-04 which, in turn, references D6-54860 Revision G, and adds Appendices A.3, B.3 and C.3 modifications.