# Airworthiness Directives; CFM International, S.A. Engines
> **Rule** · Final rule; request for comments. · Published 2025-12-12 · Effective 2025-12-29 · 90 FR 57675
## Document
- **Document number:** 2025-22684
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 90 FR 57675
- **Publication date:** 2025-12-12
- **Effective date:** 2025-12-29
- **FAA docket:** Docket No. FAA-2025-3434
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) 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. This AD was prompted by reports of two in-flight shutdowns and subsequent investigation by the manufacturer that revealed cracks in the high-pressure turbine (HPT) rotor stage 1 blades. This AD requires initial and repetitive borescope inspections (BSIs) of the HPT rotor stage 1 blades. Depending on the results of the BSIs, this AD requires either additional BSIs at reduced intervals or replacement of the HPT rotor stage 1 blades. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/12/12/2025-22684/airworthiness-directives-cfm-international-sa-engines)
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