Document ID: chunk:federal_register_of_legislation:F2005L00103:body:0:p2
Version: federal_register_of_legislation:F2005L00103
Segment Type: other
Provision Reference: 
Character Range: 2737–3701

effective date of this Directive, or by 17 March 2005, whichever occurs earlier.

             This Airworthiness Directive becomes effective on 17 February 2005.
Background:  This Directive supersedes AD/AL 250/82, which required initial and repetitive electrical signal inspections of the HMU power lever angle (PLA) potentiometer.
             This Directive continues to require those inspections in accordance with a revised ACEB and, following the manufacturer releasing a redesigned HMU that has a dual-element potentiometer, adds replacement of the existing HMU with a new design HMU as a mandatory terminating action to the repetitive inspection requirements.  These actions are intended to prevent uncommanded and sudden changes in engine power.

James Coyne
Delegate of the Civil Aviation Safety Authority

23 December 2004

The above AD is notified in the Commonwealth of Australia Gazette on 26 January 2005.