# Airworthiness Directives; CFM International S.A. Turbofan Engines
> **Rule** · Final rule. · Published 2017-03-09 · Effective 2017-04-13 · 82 FR 13063
## Document
- **Document number:** 2017-04656
- **Category:** airworthiness
- **Manufacturer:** CFM International S.A. Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 13063
- **Publication date:** 2017-03-09
- **Effective date:** 2017-04-13
- **FAA docket:** Docket No. FAA-2016-9128
## Abstract

We are adopting a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-5 turbofan engines. This AD requires removal of the radial drive shaft (RDS) assembly and the RDS outer housing and their replacement with parts eligible for installation. This AD was prompted by reports of the failure of the RDS on CFM CFM56- 5B engines. We are issuing this AD to correct the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/03/09/2017-04656/airworthiness-directives-cfm-international-sa-turbofan-engines)
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