Commonwealth legislation

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

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This instrument revokes a package of Airworthiness Directives (ADs) applying to AlliedSignal (Lycoming) T53-series turbine engines and remakes each listed AD as a separate, current instrument. It preserves the existing mandatory inspection, maintenance and replacement requirements for operators, maintainers and aircraft owners who use T53 engines.

The change is made by a CASA delegate under subregulation 39.001(1) and is administrative in nature: each AD is reissued “in exactly the same form” as the latest published edition, so affected parties remain responsible for complying with the remade ADs.

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

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.

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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

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

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