COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Rolls Royce Turbine Engines - Dart Series AD/DART/19 Combustion Air Casing Anti-Tear Straps 11/87 Applicability: All Dart RDa-6, RDa-7 series engines. Requirement: 1. Action in accordance with Rolls Royce SB Da 72-475 Rev 1; or 2. AD/RRT/32 Amdt 1. Compliance: As detailed in the Requirement Document. Background: Reissue of AD/RRT/32 Amdt 1.