AD 2023-23-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. Engines |
Unsafe Condition
Iron inclusion in certain high-pressure turbine (HPT) rotor stage 1 disks and a certain compressor rotor stages 6-10 spool, which may cause reduced material properties, lower fatigue life capability, and subsequent uncontained failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain HPT stage 1 disks and a certain compressor rotor stages 6-10 spool as specified in the service information. Prohibit installation of affected parts with specified part numbers and serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
CFM International, S.A. Model LEAP-1B21, LEAP-1B23, LEAP-1B25, LEAP-1B27, LEAP-1B28, LEAP-1B28B1, LEAP-1B28B2, LEAP-1B28B2C, LEAP-1B28B3, LEAP-1B28BBJ1, and LEAP-1B28BBJ2 engines, with specific part numbers and serial numbers as identified in the service information.
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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