COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-30 Series Aeroplanes AD/SD3-30/27 Amdt 1 Applicability: All Models. Wing Strut Distance Piece and Adjacent Side Plates Corrosion 9/93 Requirement: Action in accordance with Shorts Mandatory SB SD330-53-65 Revision 1. Note: Accomplishment of SB SD330-53-66 constitutes terminating action for the inspections required by SB SD330-53-65 R1. Compliance: a. Unless the inspection of both the distance piece and adjacent side plates has already been accomplished, within 30 days after 19 August 1993. b. Reinspect reworked distance pieces and/or side plates at intervals not to exceed 600 hours time in service or 3 months, whichever occurs first. Background: Corrosion had been detected on the horizontal leg of the distance piece during non routine maintenance. Amendment 1 is issued to reflect a revision of the Requirement Document which introduces an inspection of the side plates in addition to the distance piece, and a repeat inspection of any reworked parts.