Airworthiness Directive · Amendment 39-21379 · Turbine section
International Aero Engines AG Turbofan Engines
This AD applies to International Aero Engines AG (IAE) V2500-A1, V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 model turbofan engines with an installed:
(1) High-pressure turbine (HPT) 1st-stage disk, part number (P/N) 2A5001, with a serial number (S/N) listed in Figure 1 to paragraph (c) of this AD; or
(2) HPT 2nd-stage disk, P/N 2A4802 or 2A1202, with an S/N listed in Figure 2 to paragraph (c) of this AD.
The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE) V2500-A1, V2522-A5, V2524- A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 model turbofan engines. This AD was prompted by a root cause analysis of an event involving an uncontained failure of a high-pressure turbine (HPT) 1st-stage disk that resulted in high-energy debris penetrating the engine cowling. This AD requires removing certain HPT 1st-stage and HPT 2nd-stage disks from service. The FAA is issuing this AD to address the unsafe condition on these products.
(1) For IAE model turbofan engines with an HPT 1st-stage disk, P/N 2A5001, with a S/N listed in Figure 1 to paragraph (c) of this AD, within 50 flight cycles or 30 days after the effective date of this AD, whichever comes first, remove the HPT 1st-stage disk from service.
(2) For IAE model turbofan engines with an HPT 2nd-stage disk, P/N 2A4802 or 2A1202, with a S/N listed in Figure 2 to paragraph (c) of this AD, within 50 flight cycles or 30 days after the effective date of this AD, whichever comes first, remove the HPT 2nd-stage disk from service.
After the effective date of this AD, do not install onto any engine an HPT 1st-stage or HPT 2nd-stage disk with a P/N and S/N listed in paragraph (c) of this AD.
