# Airworthiness Directives; CFM International, S.A. Engines
> **Rule** · Final rule; request for comments. · Published 2024-03-22 · Effective 2024-03-25 · 89 FR 20303
## Document
- **Document number:** 2024-06080
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 89 FR 20303
- **Publication date:** 2024-03-22
- **Effective date:** 2024-03-25
- **FAA docket:** Docket No. FAA-2024-0760
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) Model CFM56-2, CFM56-3, CFM56-5, CFM56-5B, CFM56-5C, and CFM56-7B engines. This AD was prompted by a report of electrical arcing on certain life-limited critical parts. This AD requires replacing certain compressor discharge pressure (CDP) seals, high-pressure compressor (HPC) stage 3 disks, and high-pressure turbine (HPT) rear shafts. This AD also prohibits installation of certain CDP seals, HPC stage 3 disks, and HPT rear shafts on any engine, and prohibits installation of any engine with certain CDP seals, HPC stage 3 disks, and HPT rear shafts installed on any airplane. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/03/22/2024-06080/airworthiness-directives-cfm-international-sa-engines)
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