Commonwealth legislation

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

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This AD mandates permanent removal of first-stage power turbine rotor blade retaining pins from certain AlliedSignal (Lycoming) T53-series engines, requiring compliance with Lycoming Service Bulletin No. 0003 (Rev. 5) or earlier AD/LYC-T/5B. It affects owners/operators of specified T53 engine serial ranges and had a compliance deadline of 30 November 1973. Retiring these pins prevents catastrophic blade loss and engine failure, protecting aircraft control and safety.

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

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source AlliedSignal (Lycoming) Turbine Engines - T53 Series

AD/T53/2 First Stage Power Turbine Rotor Blade

Retaining Pins Retirement Life

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Applicability: T5313A, T5313A S/N Suffix "A", T5313B S/N LEO7500 to LEO7513 and LEO7528 to LEO7532. T53-L-13, T53-L-13 S/N Suffix "A" T53-L-13A and T53-L-13B S/N

prior to LE22568.

Document: 1. Lycoming Product Support Service Bulletin No. 0003, Rev. 5; or

2. AD/LYC-T/5B. Compliance: 30 November 1973.

Source text

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