Commonwealth legislation

AD/PR/1 - Pitch Lock Cylinder - Modification - CANCELLED

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

This document scraps an outdated aircraft safety rule.

The Civil Aviation Safety Authority has cancelled Airworthiness Directive AD/PR/1, which previously required modifications to pitch lock cylinders (safety mechanisms that stop propellers from changing blade angle unexpectedly) on Dowty Rotol variable pitch propellers.

What changes:

Aircraft owners and maintenance engineers no longer need to carry out the specific modifications mandated by the original directive
The cancellation took effect on 19 November 2009
The rule was cancelled because it was over 40 years old and no longer necessary for safety

This is a housekeeping measure to remove obsolete regulatory requirements from the books.

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Current sections

Direct links to the current provisions in AD/PR/1 - Pitch Lock Cylinder - Modification - CANCELLED.

AD/PR/1 - Pitch Lock Cylinder - Modification - CANCELLED

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AIRWORTHINESS DIRECTIVE

On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/PR/1.

Propellers - Variable Pitch - Dowty Rotol

AD/PR/1	Pitch Lock Cylinder - Modification	12/2009

Requirement:	CANCELLED.
	This AD is cancelled on 19 November 2009.
Background:	This unique Australian AD was no longer required. It was older than 40 years.

View image in the official source

James Coyne Delegate of the Civil Aviation Safety Authority

30 September 2009

Source text

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