Airworthiness Directive · Amendment 39-18914 · Turbine/turboprop engine--turbine section
General Electric Company Turbofan Engines
This AD applies to General Electric Company (GE) CF6-80C2L1F turbofan engines with a high-pressure turbine (HPT) spacer/impeller, part number (P/N) 1539M12P02, installed.
We are adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80C2L1F turbofan engines. This AD was prompted by a reduction in the life limit of the affected engines which is the result of a revised operating profile. This AD requires replacement of the high-pressure turbine (HPT) spacer/impeller, part number (P/N) 1539M12P02, at a newer, lower life limit. We are issuing this AD to correct the unsafe condition on these products.
After the effective date of this AD, replace the HPT spacer/impeller, P/N 1539M12P02, before it exceeds 18,000 flight cycles since new.
After the effective date of this AD, do not install an HPT spacer/impeller, P/N 1539M12P02, onto any engine, or return to service any engine with an HPT spacer/impeller, P/N 1539M12P02, installed, if the HPT spacer/impeller exceeds 18,000 flight cycles since new.
