AD 2022-17-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. Turbofan Engines |
Unsafe Condition
Cracks in the high-pressure turbine (HPT) rotor stage 1 blades due to accelerated HPT rotor stage 1 blade deterioration and airfoil distress caused by the build-up of dust in the Middle East and North Africa (MENA) region.
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Required Actions
Perform initial and repetitive borescope inspections (BSIs) of the HPT rotor stage 1 blades. Depending on the results of the BSIs, perform additional BSIs at reduced intervals or replace the HPT rotor stage 1 blades. Send the inspection results to CFM if any unserviceable finding is found.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
CFM LEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, and LEAP-1A35A model turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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