Commonwealth legislation

AD/DC4/26 - Feathering Pump Line - Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The AD mandates removal of a duralumin pump assembly (part 5229000) on the propeller feathering pump line and its replacement with 5/8" OD x 18 SWG tubing of stainless steel or cadmium‑plated chrome‑moly for all Douglas DC‑4 series aeroplanes.

Aircraft owners/operators and their maintenance organisations must carry out and fund the work (or follow the cited ANO alternative compliance routes), shifting procurement and maintenance scheduling onto operators.

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Current sections

Direct links to the current provisions in AD/DC4/26 - Feathering Pump Line - Replacement.

AD/DC4/26 - Feathering Pump Line - Replacement

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Douglas DC4 Series Aeroplanes

AD/DC4/26 Feathering Pump Line - Replacement NK

Applicability: All models.

Requirement: Remove the duralumin pump assembly (P/N 5229000) running from the propeller feathering pump to the firewall and replace with 5/8 in. outside diameter x 18 SWG stainless steel or cadmium plated chrome molybdenum tubing; or

ANOs Part 100, Appendix “A” Notice No. 22/6; or ANO 105.1.16.2.5.25.

Source text

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