AD 2025-21-03

Recurring final rule
Data completeness: 80%

Airworthiness Directives; CFM International, S.A. Engines

AD Number
2025-21-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2025-3434
FR Citation
90 FR 57675

Applicability

TypeManufacturerModelDetails
engine CFM International Airworthiness Directives; CFM International, S.A. Engines

Unsafe Condition

cracks in the high-pressure turbine (HPT) rotor stage 1 blades

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

initial and repetitive borescope inspections (BSIs) of the HPT rotor stage 1 blades, depending on the results of the BSIs, additional BSIs at reduced intervals or replacement of the HPT rotor stage 1 blades

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 50 flight hours

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

CFM International, S.A. Model 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 engines operating in the South Asia region

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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