COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-30 Series Aeroplanes AD/SD3-30/31 Flap Hydraulic Unit Brackets 2/96 Applicability: All SD330 aircraft. Requirement: Action in accordance with Shorts Mandatory Service Bulletin SD330-27-34. Note: UK CAA AD 005-09-95 refers. Compliance: Unless already accomplished, an initial inspection is required before 29 February 1996; thereafter as specified in the Requirement Document. Background: The manufacturer received a report of exfoliation corrosion on brackets in flap hydraulic units.