Document ID: chunk:federal_register_of_legislation:F2006B06385:body:0
Version: federal_register_of_legislation:F2006B06385
Segment Type: other
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Character Range: 0–1597

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Pratt and Whitney Canada Turbine Engines - PW100 Series

 AD/PW100/6
 Amdt 2

 Intercompressor Case Ventilation 10/97

 Applicability: PW118A, PW123, PW123AF, PW123B, PW124B, PW125B, PW126, PW126A
            engines.

            Requirement: Action in accordance with the technical requirements of Transport Canada Airworthiness Directive CF-92-03R2.

            Note: FAA AD 94-11-11 also refers.

 Compliance: Unless previously accomplished, as detailed in the requirement document.

            This amendment becomes effective on 11 September 1997.

            Background: This AD arises from reports of internal oil fires in the intercompressor case (ICC) which can result in aircraft damage and in-flight shutdown.

            ICC fires can occur as a result of spontaneous ignition of:

                (a)     engine oil that has accumulated in the ICC cavity, or

(b)     air/oil mist that can reverse flow into the ICC following a No 5 bearing failure. The modifications mandated by this AD will prevent ICC fires.
            Amendment 1 revised the Directive to reflect the technical requirements of Transport Canada AD CF-92-03 R2 and to expand the "Background" information.

            This amendment corrects the reference to FAA AD 94-11-11.

            Amendment 1 of this airworthiness directive became effective on 10 November 1994. The original issue of this airworthiness directive became effective on 10 March 1993.