AD/CF6/82 - High Pressure Compressor Disk Lock Slots

This Airworthiness Directive requires operators of specified General Electric CF6 series engines to inspect and periodically re‑inspect the stage‑14 high‑pressure compressor disk lock slots for cracks, following FAA AD 2000-11-12. Later revisions to GE CF6-50 ASB No.72-A1144 are acceptable only if the FAA approves them as an Alternate Method of Compliance. Effective 11 November 2010. Operators pay inspection and repair costs; CASA enforces compliance and the FAA decides acceptable alternative procedures. The stated aim is to prevent disk failure and uncontained engine failure.