AD 2020-05-28
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | International | Aero | Airworthiness Directives; International Aero Engines LLC Turbofan Engines |
Unsafe Condition
multiple reports of in-flight engine shutdowns as the result of high-cycle fatigue causing fracture of certain parts of the main gearbox (MGB) assembly
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the MGB assembly, part number (P/N) 5322505, and install a part eligible for installation. For engines that operate on 180-minute extended operations (ETOPS) flights, before further flight. For engines that do not operate on ETOPS flights, within 50 flight hours after the effective date of this AD. Replace the electronic engine control (EEC) software to incorporate FCS5.0 software. Replace the integrated drive generator oil pump drive gearshaft assembly in the MGB assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight for ETOPS flights, within 50 flight hours after the effective date of this AD for non-ETOPS flights
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Affected Aircraft
All International Aero Engines, LLC (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1129G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM model turbofan engines
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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