AD 2018-20-23
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company | Airworthiness Directives; General Electric Company Turbofan Engines |
Unsafe Condition
The HPC rotor stage 2-5 spools identified in GE SB GE90-100 SB 72-0659 R01, dated February 18, 2016, and GE SB GE90-100 S/B 72-0714, Revision 01, dated February 16, 2018, have been removed from service due to an unsafe condition.
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Required Actions
Remove the HPC rotor stage 2-5 spools identified in GE SB GE90-100 SB 72-0659 R01, dated February 18, 2016, and GE SB GE90-100 S/B 72-0714, Revision 01, dated February 16, 2018, from service, and prohibit the installation of those HPC rotor stage 2-5 spools and the HPC rotor stage 2-5 spools identified in GE SB GE90-100 SB 72-0499 R01, dated February 5, 2014.
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Compliance Time
Before further flight
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Affected Aircraft
General Electric Company, GE90-110B1 and GE90-115B turbofan engines with certain HPC rotor stage 2-5 spools installed.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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