AD 2022-03-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company | Airworthiness Directives; General Electric Company Turbofan Engines |
Unsafe Condition
Sheared compressor discharge pressure (CDP) bolts during engine shop visits due to inadvertent over-torque condition of the bolts during assembly and reassembly with a 11C4525P01 torque fixture or during assembly with a 11C4629P01 torque wrench.
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Required Actions
Initial and repetitive inspections of the CDP bolted joint, and depending on the findings, a piece part inspection of the stages 6-10 compressor rotor spool, CDP seal, and high-pressure turbine (HPT) rotor stage 1 disk. As a terminating action, reassemble the CDP bolted joint using a 11C4888P01 torque wrench.
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Compliance Time
Before further flight
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Affected Aircraft
General Electric Company, GEnx-1B and GEnx-2B model turbofan engines, with engine serial numbers (S/Ns) defined in GEnx-1B Service Bulletin (SB) 72-0495 R00, dated May 11, 2021, or in GE GEnx-2B SB 72-0433 R00, dated May 11, 2021.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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