Commonwealth legislation

AD/PHS/12 - Pacific 6533A Propeller Blade

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

What this is: A mandatory aviation safety notice (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority under aviation law.

Who it affects: Owners and operators of Airtractor 301 series agricultural aircraft fitted with specific Hamilton Standard propellers (model 22D40/6533A-12).

What it requires: You must follow the instructions in Hamilton Standard Alert Service Bulletin No A663. This external technical document sets out the specific actions (such as inspections, repairs, or replacements) needed to address the safety issue.

Why it matters: The propeller blades have been experiencing tip failures (breaking at the ends), which poses a serious risk of loss of control or structural damage during flight. This directive makes the manufacturer's recommended safety fix legally compulsory.

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Current sections

Direct links to the current provisions in AD/PHS/12 - Pacific 6533A Propeller Blade.

AD/PHS/12 - Pacific 6533A Propeller Blade

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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 - Hamilton Standard

AD/PHS/12 Pacific 6533A Propeller Blade 5/88 DM

Applicability: All model 22D40/6533A-12 propellers fitted to but not limited to Airtractor 301 series aircraft.

Requirement: Action in accordance with Hamilton Standard Alert Service Bulletin No A663. Compliance: In accordance with the Requirement Document.

Background: A number of operators have experienced tip failure of the Pacific 6533A-12 blade.

Source text

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