Airworthiness directives › 2019-25-01
AD 2019-25-01 Airworthiness Directives; International Aero Engines, LLC Turbofan Engines
Applicability*9
This AD applies to International Aero Engines, LLC (IAE LLC) PW1122G-JM, PW1124G-JM, PW1124G1-JM, PW1127G1-JM, PW1127GA-JM, PW1127G-JM, PW1129G-JM, PW1130G-JM, PW1133GA-JM, PW1133G-JM model turbofan engines with an engine serial number listed in paragraphs (g)(1) through (4) of this AD and with low-pressure turbine (LPT) 3rd-stage blades, part number (P/N) 5387343, 5387493, 5387473 or 5387503.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For any IAE LLC LPT 3rd-stage blade, P/N 5387343, 5387493, 5387473, or 5387503, and with an engine serial number specified in paragraph (g)(1) through (4) of this AD, remove the affected blade from service within the times specified in paragraphs (g)(1) through (4) of this AD and replace with a part eligible for installation. (1) Within 90 days after the effective date of this AD or at the next engine shop visit, whichever comes first, for engines with serial numbers: P770536; P770620; P770626; P770641; P770644; P770681; P770690; P770693; P770773; P770780; P770813; P770816; P770827; P770841; P770852; P770869; P770870; P770873; P770883; P770894; P770909; P770512; P770762; P770484; P770805; P770716; P770836; or P770942. (2) Within 180 days after the effective date of this AD or at the next engine shop visit, whichever comes first, for engines with serial numbers: P770347; P770981; P770814; P770825; P770964; P770622; P770763; P771019; P770980; P770985; P771048; P770487; P770911; P770960; P770932; P770934; P770444; P770993; P770996; P770893; P770320; P771036; P771040; P770797; P771047; P770537; P771026; P771050; P771046; P771074; P771062; P771080; P771099; P771164; or P770984. (3) Within 270 days after the effective date of this AD or at the next engine shop visit, whichever comes first, for engines with serial numbers: P770966; P770482; P770170; P770272; P770646; P771167; P770495; P771162; P770463; P770853; P771015; P771032; P771165; P771170; P771092; P771093; P771174; P771135; P770597; P771113; P770469; P771154; P770244; P771059; P770287; P770740; P771107; P771118; P770366; P770607; P770577; P771219; P771258; P771207; P771211; P771138; P771140; P770594; P771020; P771279; P771280; P770499; P770279; P771273; P770978; or P770916. (4) Within 360 days after the effective date of this AD or at the next engine shop visit, whichever comes first, for engines with serial numbers: P770579; P771188; P770722; P770603; P770715; P770768; P771120; P771132; P770782; P771288; P770504; P771238; P770676; P770128; P770191; P771277; P770749; P770800; P770381; P770395; P770218; P770374; P770256; P770452; P770460; P771141; P770138; P770750; P770645; P770756; P770308; P770143; P770439; P770509; P770127; P770139; P770172; P770176; P770129; P770140; P770173; P770640; P770742; P771006; P770505; P771161; P770315; P770263; P770724; P770259; P770149; P770269; P770486; P770614; P770975; P770946; P770629; or P771166.
Unsafe condition
This AD was prompted by reports of failure of certain LPT 3rd-stage blades. The FAA is issuing this AD to prevent failure of these LPT 3rd-stage blades. The unsafe condition, if not addressed, could result in failure of the LPT 3rd-stage blades, failure of one or more engines, loss of thrust control, and loss of the airplane.
Affected ADs
None.
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