Commonwealth legislation

AD/JT9D/7 - No. 3 Bearing Breather Temp Check and Replacement of Main Bearing Breather Tube Steel Elbow

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This airworthiness directive requires a No. 3 bearing‑breather temperature check and, if indicated, replacement of the steel elbow in the main bearing breather tube on certain Pratt & Whitney JT9D engines that use specified labyrinth solid‑land seals. Compliance must follow the procedures and timing in the referenced Requirement Document (FAA AD 76‑20‑03 or AD/PW‑T/37). Costs, parts and downtime fall to the affected engine owners/operators and their maintenance organisations.

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AD/JT9D/7 - No. 3 Bearing Breather Temp Check and Replacement of Main Bearing Breather Tube Steel Elbow

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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 Pratt and Whitney Turbine Engines - JT9D Series

AD/JT9D/7 No. 3 Bearing Breather Temp Check and Replacement of Main Bearing Breather Tube Steel Elbow

10/76

Applicability: JT9D-3A, -7, -7A, -7H, -7AH, -7F and -20 turbofan engines incorporating labyrinth solid land seals P/Nos. 589733, 589741, 647189 or 729774.

Document: 1. FAA AD 76-20-03 : Amendment 39-2731; or

AD/PW-T/37.

Compliance: As detailed in the Requirement Document.

Source text

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