COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-30 Series Aeroplanes AD/SD3-30/25 Airworthiness Limitations 8/89 Applicability: All models. Requirement: The approved system of maintenance of all SD3-30 aeroplanes shall include all relevant inspections and life limitations in the Shorts SD3-30 Maintenance Programme, Revision 17 dated 23 November 1987. Compliance: Forthwith. Background: This Directive has been raised to formally promulgate the Airworthiness limitations inspections and life limitations, which had been previously overlooked. The Maintenance Programme is a separate document but which forms Chapter 5 of the Maintenance Manual.