# Airworthiness Directives; CFM International, S.A. Turbofan Engines Modified by Supplemental Type Certificate SE00034EN
> **Rule** · Final rule; request for comments. · Published 2016-07-25 · Effective 2016-08-09 · 81 FR 48321
## Document
- **Document number:** 2016-17442
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 81 FR 48321
- **Publication date:** 2016-07-25
- **Effective date:** 2016-08-09
- **FAA docket:** Docket No. FAA-2012-1289
## Abstract

We are superseding airworthiness directive (AD) 2013-02-02 for certain CFM International, S.A. CFM56-3, CFM56-3B, and CFM56-3C turbofan engines. AD 2013-02-02 required removal from service of certain high-pressure turbine (HPT) disks manufactured by Global Material Solutions of Pratt & Whitney, at reduced maximum life limits. This AD corrects the serial numbers (S/Ns) listed in AD 2013-02-02. This AD was prompted by reports that certain HPT disk S/Ns in AD 2013- 02-02 and in certain Pratt & Whitney service information are incorrect. We are issuing this AD to prevent uncontained release of multiple turbine blades, damage to the engine, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/07/25/2016-17442/airworthiness-directives-cfm-international-sa-turbofan-engines-modified-by-supplemental-type)
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