Commonwealth legislation

AD/TURMO/3 - Gas Generator Rear Bearing - Permeability Checks

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This Act has been repealed and is no longer in force. It is retained for historical reference.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 mandatory Civil Aviation Safety Authority airworthiness directive affects operators of aircraft with Turbomeca Turmo 111 C3/C5/C6 and E3/E6 engines, requiring non‑destructive "permeability checks" of the gas‑generator rear bearing to detect cracks, leaks or material defects.

Compliance is by the deadlines in either Turbomeca Service Letter No. 220/71/41 or the alternative AD/TURB‑T/5. It prevents sudden, catastrophic engine failure.

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Current sections

Direct links to the current provisions in AD/TURMO/3 - Gas Generator Rear Bearing - Permeability Checks.

AD/TURMO/3 - Gas Generator Rear Bearing - Permeability Checks

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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 Turbomeca Turbine Engines - Turmo Series

AD/TURMO/3 Gas Generator Rear Bearing - Permeability Checks

Applicability: Turbo 111 C3, C5, C6, E3 and E6 engines. Requirement: 1. Turbomeca SL No. 220/71/41; or

AD/TURB-T/5.

Compliance: As detailed in the requirement document.

12/85

Source text

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