COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-60 Series Aeroplanes AD/SD3-60/9 Amdt 1 Nose Undercarriage Main Fitting 13/87 Applicability: All model SD3-60 aircraft with nose undercarriage units listed in Dowty Rotol Service Bulletin No 32-26 SD. Requirement: Action in accordance with Dowty Rotol Service Bulletin No 32-26 SD. Compliance: Prior to the issue of a Certificate of Airworthiness. Background: The manufacturer has reported an instance of cracking on the cylindrical wall of the main fitting. This amendment makes typographical changes only.