Airworthiness Directives 2004

 I, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety

 Authority, acting under subregulation 39.001 (1) of the Civil

 Aviation Safety Regulations 1998:

 (a) revoke the Airworthiness Directives mentioned in

 Schedule 1; and

 (b) make, as separate instruments, each Airworthiness

 Directive mentioned in Schedule 1 and attached.

 David Villiers

 Delegate of the Civil Aviation Safety Authority

  20 December 2004

 Note:   Each attached Airworthiness Directive is being re-made in exactly the

 same form as appears in the latest published edition of the Directive.

 Schedule 1 Revocation and Remaking of

 Airworthiness Directives

 AlliedSignal (Lycoming) Turbine Engines - T53 Series

 AD Name AD Number

 Rotating Components - Service Life Limit - CANCELLED AD/T53/1 Amdt 2

 First Stage Power Turbine Rotor Blade Retaining Pins Retirement Life AD/T53/2

 Rotating Component - Service Life Limits - CANCELLED AD/T53/3 Amdt 1

 Engine Oil Pump Drive Gear Spline - Inspection AD/T53/4

 Accessory Drive Gearbox - Rework AD/T53/5

 Overspeed Pickup Gear and Shaft - Inspection and Modification AD/T53/6

 Improved Gas Producer Turbine Rotor  Blades - Introduction AD/T53/7

 Second Stage Power Turbine Rotor Disc - Rework AD/T53/8

 Second Stage Gas Producer Cylinder Bolts - Replacement AD/T53/9

 Inlet Guide Vane Feedback Tube Assembly - Inspection AD/T53/10

 Replacement Of Compressor Rotor Discs and Impeller Assembly AD/T53/11

 Fuel Regulator Main Pressure Regulator Valve Diaphragm Replacement AD/T53/12

 Improved Centrifugal Compressor  Impeller - Introduction AD/T53/13

 Torque Meter Boost Pump - Replacement AD/T53/14

 Fuel Regulator - P1 Multiplier Connector Assembly Damping AD/T53/15

 Power Turbine Clamping Plate - Inspection AD/T53/16

 Centrifugal Compressor Impellers AD/T53/17

 Gas Producer and Power Turbine Discs and Spacers AD/T53/18

 N2 Accessory Drive AD/T53/19

 Accessory Drive Carrier AD/T53/20

 Tachometer Drive Spur Gear AD/T53/21