Airworthiness directives › 2021-19-10
AD 2021-19-10 Airworthiness Directives; International Aero Engines, LLC Turbofan Engines
Applicability*9
This AD applies to International Aero Engines, LLC (IAE) PW1122G-JM, PW1124G1-JM, PW1124G-JM, PW1127G1-JM, PW1127GA-JM, PW1127G-JM, PW1129G-JM, PW1130G-JM, PW1133GA-JM, and PW1133G-JM model turbofan engines with an installed: (1) High-pressure turbine (HPT) 1st-stage disk, part number (P/N) 30G6201 or 30G7301, with a serial number (S/N) listed in Figure 1 to paragraph (c) of this AD; or (2) HPT 2nd-stage disk, P/N 30G5502 or 30G6602, with an S/N listed in Figure 2 to paragraph (c) of this AD. BILLING CODE 4910-13-P ER10SE21.000 ER10SE21.001 BILLING CODE 4910-13-C
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) For IAE model turbofan engines with an HPT 1st-stage disk, P/N 30G6201 or 30G7301, with an S/N listed in Figure 1 to paragraph (c) of this AD, within 30 days after the effective days of the AD, remove the HPT 1st-stage disk from service. (2) For IAE model turbofan engines with an HPT 2nd-stage disk, P/N 30G5502 or 30G6602, with an S/N listed in Figure 2 to paragraph (c) of this AD, within 30 days after the effective days of the AD, remove the HPT 2nd-stage disk from service.
Unsafe condition
This AD was prompted by an analysis performed by Pratt & Whitney of an event involving an uncontained failure of an HPT 1st-stage disk that resulted in high-energy debris penetrating the engine cowling. The FAA is issuing this AD to prevent failure of the HPT 1st-stage and HPT 2nd-stage disks. The unsafe condition, if not addressed, could result in uncontained HPT disk failure, release of high-energy debris, damage to the engine, damage to the airplane, and loss of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1