Commonwealth legislation

AD/JT9D/5 - Replacement of Main Gearbox Assembly Face Seals

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This AD mandates replacement of the main gearbox assembly face seals on Pratt & Whitney JT9D-3A and JT9D-7 series engines by 1 February 1975, using one of three specified technical documents. It affects aircraft owners, operators, and maintenance organisations, who must schedule, fund and carry out the work—incurring parts, labour and downtime—to address the identified airworthiness concern.

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AD/JT9D/5 - Replacement of Main Gearbox Assembly Face Seals

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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/5 Replacement of Main Gearbox Assembly Face Seals

Applicability: JT9D-3A and JT9D-7 series.

Document: 1. Pratt & Whitney TE SB 3902, Rev. 6; or 2. FAA AD 74-10-04; or

AD/PW-T/32.

Compliance: 1 February 1975.

6/74

Source text

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