Commonwealth legislation

AD/TPE 331/47 - Third Stage Turbine Stator Assembly

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

The Civil Aviation Safety Authority requires operators of specified AlliedSignal TPE331‑1/2/3/5/6 engines fitted with third‑stage turbine stator P/N 868379‑3 (serials listed in the OEM’s Service Bulletin Table 3) to remove and inspect the stator per Service Bulletin TPE331‑A72‑0906 because some assemblies may have a non‑conforming inner seal support alloy. Compliance is mandatory; owners/operators bear inspection, repair and downtime costs while maintenance providers perform the work.

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Current sections

Direct links to the current provisions in AD/TPE 331/47 - Third Stage Turbine Stator Assembly.

AD/TPE 331/47 - Third Stage Turbine Stator Assembly

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series

AD/TPE 331/47 Third Stage Turbine Stator Assembly 1/94

Applicability: TPE331-1, -2, -3, -5 and -6 series engines fitted with part number 868379-3 third stage turbine stator assemblies, as listed by serial number in Table 3 of Allied Signal Aerospace Service Bulletin TPE331-A72-0906.

Requirement: Inspect the third stage turbine stator assembly in accordance with Allied Signal Aerospace Service Bulletin TPE331-A72-0906.

Compliance: Effective 6 January 1994; as detailed in the Requirement document.

Background: This Directive requires the removal and inspection of certain third stage turbine stator assemblies. The requirement follows advice, certain P/N 868379-3 stators were assembled with the inner seal support sheet metal parts fabricated from an alloy which did not conform to specifications.

Source text

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

1 AD/TPE 331/47 - Third Stage Turbine Stator Assembly

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series

AD/TPE 331/47 Third Stage Turbine Stator Assembly 1/94

Requirement: Inspect the third stage turbine stator assembly in accordance with Allied Signal Aerospace Service Bulletin TPE331-A72-0906.

Compliance: Effective 6 January 1994; as detailed in the Requirement document.