AD/CF6/21 - Eddy Current Inspection of High Pressure Turbine Thermal Shields
1AD/CF6/21 - Eddy Current Inspection of High Pressure Turbine Thermal Shields
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text General Electric Turbine Engines - CF6 Series
AD/CF6/21 Eddy Current Inspection of High Pressure
Turbine Thermal Shields
Applicability: CF6-45/-50 series engines.
11/91
Requirement: Action in accordance with the Technical Requirements of FAA AD 91-15-16, Amendment 39-7080.
Note: General Electric Service Bulletin 72-879 Revision 6 refers.
Compliance: As specified in the Requirement Document with an effective date of 28 November 1991.
Background: Four HPT stage one discs have been found cracked during inspection. The condition, if not corrected could result in uncontained engine failure.