# Airworthiness Directives; Engine Alliance Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2017-11-09 · Effective 2017-11-24 · 82 FR 51979
## Document
- **Document number:** 2017-24462
- **Category:** airworthiness
- **Manufacturer:** Engine Alliance Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 82 FR 51979
- **Publication date:** 2017-11-09
- **Effective date:** 2017-11-24
- **FAA docket:** Docket No. FAA-2017-0988
## Abstract

We are superseding Emergency Airworthiness Directive (AD) 2017-21-51 for all Engine Alliance (EA) GP7200 series turbofan engines. AD 2017-21-51 was sent previously to all known U.S. owners and operators of GP7200 series turbofan engines. AD 2017-21-51 required visual inspections of all fan hubs for damage. This AD retains the same required actions as AD 2017-21-51 and clarifies the compliance requirements. This AD was prompted by the failure of a GP7200 fan hub. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/11/09/2017-24462/airworthiness-directives-engine-alliance-turbofan-engines)
---
*AI Analytics · CC0 1.0*