Document ID: chunk:federal_register_of_legislation:F2006B08461:body:0
Version: federal_register_of_legislation:F2006B08461
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 General Electric Turbine Engines - CF6 Series

AD/CF6/17 Stage 1 Fan Rotor Disc 3/91

 Applicability: CF6 - 6, -45, -50, -80A.

            Requirement: Inspect the stage 1 fan disc dovetail post for cracks in accordance with the technical requirements of the FAA AD 91-01-04 Amdt 39-6847.

            Note: The GE SB 72-999, 965 and 575 covering the -50/-45, -6 and -80A series respectively refer.

 Compliance: As specified in the Requirement Document.

            Background:  Five stage 1 fan discs have been discovered with cracks in the dovetail post area. The defect has the potential for multiple blade release, engine power loss and uncontained engine failure.