COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES British Aerospace BAe 146 Series Aeroplanes AD/BAe 146/15 Amdt 1 Additional Riveted Attachment - Stringer 21P 12/89 DM Applicability: Series 200 and 200A: S/No. E2103, E2106, E2107, E2108, E2110, E2111, E2115 and E2121. Series 300 and 300A: S/No. E3120, E3122, E3123, E3126 and E3132. Requirement: Action in accordance with BAe S.B. 53-84-00737D Revision 1. Compliance: Prior to achieving 3000 flight cycles. Background: On some aircraft stringer 21P which is attached to the lower L.H. skin panel has not been riveted at the end termination area adjacent to frame 39X. This S.B. introduces eight rivet positions to the stringer and termination area. Amendment 1 corrects original Service Bulletin number, and further references Revision 1 of the Service Bulletin, which adds an aircraft serial number to the applicable aircraft.