Airworthiness Directives 2004 - Revocation and Remaking - AlliedSignal (Lycoming) Turbine Engines - T53 Series (Cth)

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