AD/PFP/16 Ken Brock Propeller Hub Extension Cancelled (Cth)

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/PFP/16.

Propellers - Fixed Pitch

AD/PFP/16 Ken Brock Propeller Hub Extension 4/2009

Requirement:

CANCELLED.

This AD is cancelled on 9 April 2009.

Background:

This unique Australian AD was raised in 1991 requiring replacement of propeller hub extension supplied by Ken Brock and fitted to any Lycoming 0-320 or 0-360 powered amateur built aircraft following a fatigue failure caused by insufficient thickness of hub extension.

Compliance was at next scheduled aircraft inspection, or by 31 July 1991, whichever occurs first.

Given the extended period this AD has been promulgated and that all affected propeller hub extensions would have been replaced by now, this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

16 February 2009