# Airworthiness Directives; CFM International, S.A. Turbofan Engines
> **Rule** · Final rule. · Published 2021-06-10 · Effective 2021-07-15 · 86 FR 30770
## Document
- **Document number:** 2021-12137
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 30770
- **Publication date:** 2021-06-10
- **Effective date:** 2021-07-15
- **FAA docket:** Docket No. FAA-2021-0187
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) LEAP-1A model turbofan engines. This AD was prompted by a report of a manufacturing quality escape found during an inspection of a high-pressure turbine (HPT) case. This AD requires the removal from service of the affected HPT case. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/06/10/2021-12137/airworthiness-directives-cfm-international-sa-turbofan-engines)
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