Document ID: chunk:federal_register_of_legislation:F2006B11021:body:0
Version: federal_register_of_legislation:F2006B11021
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Pratt and Whitney Turbine Engines - JT9D Series

AD/JT9D/28 LPT Vane Hardware 1/97

 Applicability: All Pratt and Whitney JT9D-7R4 series engines.

            Requirement: Replace certain 5th stage Low Pressure Turbine (LPT) vanes, and 3rd, 4th and 5th stage vane retention hardware in accordance with the technical requirements of FAA AD 96-17-11.

 Compliance: As detailed in the Requirement Document with an effective date of 2 January 1997.

            Background: There have been reports of failures of LPT vane retention hardware which resulted in uncontained engine failures.