Commonwealth legislation

AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Directive requires operators and maintainers to inspect the hub front wall/snout radius on specified Dowty Rotol propellers (R212/4-30-4/22, R212/4-30-4/22/1, R251/4-30-4/49) following Dowty Rotol SB 61-1053 Revision 2. Hubs previously exempt under AD/PR/20 must be reinspected, and any crack found at overhaul triggers fleet‑wide recurring inspections. It shifts inspection, repair and recurring‑maintenance costs onto aircraft owners/operators and their maintenance providers.

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Current sections

Direct links to the current provisions in AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking.

AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Propellers - Variable Pitch - Dowty Rotol

AD/PR/26

Amdt 1

Front Wall/Snout Radius Cracking 5/90

Applicability: All R212/4-30-4/22, R212/4-30-4/22/1 and R251/4-30-4/49 propellers.

Requirement: Inspect the hub front wall/snout radius area for evidence of cracking in accordance with Dowty Rotol SB 61-1053 Revision 2.

Note: Hubs previously exempt or certified as having complied with AD/PR/20 must be reinspected in accordance with this Directive.

Compliance: In accordance with the Requirement Document.

Background: Cracks have been found in the front wall/snout radius area in a limited number of hubs modified to VP 2388 standard. The manufacturer now requires all hubs, modified or unmodified, to be inspected and if a hub is found cracked during overhaul a fleet wide recurring inspection is required.

This Amendment incorporates Revision 2 of the Requirement document.

Source text

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

1 AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking