Commonwealth legislation

AD/PR/17 - Hub Driving Centre Flange - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This directive mandates a safety inspection for a specific mechanical part on certain older aircraft propellers.

What it requires Owners must inspect the hub driving centre flange (the central metal component that connects the propeller to the engine and transmits power) on specific Dowty Rotol propellers.

Who must comply This applies only to:

Argosy 100 aircraft fitted with Dowty Rotol model R186/4-30-4/16 propellers
Only if the propeller has not already been modified under Service Modification No. VP 2381

How to comply Follow the inspection procedures detailed in Dowty Rotol Service Bulletin No. 61-477, Revision 1. The bulletin contains the technical steps, tools required, and acceptance criteria.

Why this matters The inspection detects potential cracks or structural fatigue in the flange that could lead to propeller separation or catastrophic failure during flight. This is a mandatory safety requirement under Part 39 of the Civil Aviation Regulations.

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Current sections

Direct links to the current provisions in AD/PR/17 - Hub Driving Centre Flange - Inspection.

AD/PR/17 - Hub Driving Centre Flange - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Propellers - Variable Pitch - Dowty Rotol

AD/PR/17 Hub Driving Centre Flange - Inspection NK

Applicability: All model R186/4-30-4/16 installed on Argosy 100 aircraft and not incorporating Mod. No. (c) VP 2381.

Document: Dowty Rotol SB No. 61-477, Rev. 1. Compliance: As detailed in the requirement document.

Source text

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