Commonwealth legislation

AD/JT9D/11 - No. 4 Bearing Compartment

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Commonwealth

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legislative instrument

Plain English Summary

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This Australian airworthiness directive (AD) requires operators of Pratt & Whitney JT9D engines to carry out mandatory corrective/inspection action for the No.4 bearing compartment by following a nominated Requirement Document (FAA AD 78‑16‑05, P&W Alert SBs or AD/PW‑T/48). Engines fitted with the annular strainer element per P&W SB No.4860 are excluded. CASA issues the AD; compliance and any costs fall to engine owners/operators, who must consult the referenced documents for technical detail.

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AD/JT9D/11 - No. 4 Bearing Compartment

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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/11 No. 4 Bearing Compartment 10/78

Applicability: All JT9D engines except those fitted with an annular strainer element in accordance with PWA SB No. 4860.

Document: 1. FAA AD 78-16-05: Amendment 39-3274; or

Pratt & Whitney Aircraft Alert SB No. 4826; or 3. AD/PW-T/48.

Compliance: As detailed in Requirement Document No. 1.

Source text

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