Commonwealth legislation

AD/JT8D/11 - First Stage Fan Hubs

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This airworthiness directive targets certain Pratt & Whitney JT8D engines fitted with front compressor hub P/N 504101 whose serial numbers appear in Table 1 of PWA Alert SB No. 4661 and that have ≥6,000 cycles. It mandates following the actions and timings set out in the referenced Requirement Document (FAA AD 77‑03‑06 or AD/PW‑T/42).

It affects owners/operators and maintenance providers who must inspect, remove, repair or replace hubs per those documents, imposes the associated costs and downtime, and relies on access to the external technical references for compliance.

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Current sections

Direct links to the current provisions in AD/JT8D/11 - First Stage Fan Hubs.

AD/JT8D/11 - First Stage Fan Hubs

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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 - JT8D Series

AD/JT8D/11 First Stage Fan Hubs 4/77

Applicability: All JT8D-1, -1A, -1B, -7, -7A and -7B engines fitted with front compressor front hub P/N 504101 with S/Nos. listed in Table 1 of PWA Alert SB No. 4661 which have accumulated 6000 cycles or more in service.

Document: 1. FAA AD 77-03-06 : Amendment 39-2828; or

AD/PW-T/42.

Compliance: As detailed in the Requirement Document.

Source text

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