Document ID: chunk:federal_register_of_legislation:F2006B10852:body:0:p2
Version: federal_register_of_legislation:F2006B10852
Segment Type: other
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Character Range: 2789–3661

of this Directive.
           This Airworthiness Directive becomes effective on 5 September 2002.

           Background: This Directive requires the inspection of affected IRUs for proper function and the removal of the IRU either immediately or within 200 hours TIS, depending on the result of the inspection. The Directive is the result of a report that these IRUs may not function when using backup battery power in certain installations. Failure of an IRU to transition to backup battery power could result in loss of attitude, heading, together with position reference and could lead to the pilot making flight decisions that put the aircraft in unsafe flight conditions.

 Eugene Paul Holzapfel
 Delegate of the Civil Aviation Safety Authority 29 July 2002

 The above AD is notified in the Commonwealth of Australia Gazette on 14 August 2002.