COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Rolls Royce Turbine Engines - Spey Series AD/RRT-S/5 In-Field Rectification of Low Power Indication - Performance Monitoring Applicability: Spey 555-15. Requirement: Rolls Royce SB No. Sp 71-242. Compliance: As detailed in the requirement document. 6/78