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/3 Stage 2 and 3 H.P. Compressor Discs - Increased
Thickness Neck and Diaphragm
9/74
Applicability: Spey 505-5F, 506-14, 506-14A, 506-14AW, 506-14D, 511-5W, 511-8, 511-14, 511-
14W, 555-15.
Requirement: Rolls Royce Spey SB No. Sp 72-715 Part 1 and Part 2.
Compliance: As per the requirement document or at 4000 disc cycles, whichever occurs first.