# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2017-12-19 · Effective 2018-01-23 · 82 FR 60106
## Document
- **Document number:** 2017-27248
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 60106
- **Publication date:** 2017-12-19
- **Effective date:** 2018-01-23
- **FAA docket:** Docket No. FAA-2017-0660
## Abstract

We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-1B64/P2, -1B67/P2, -1B70/P2, -1B70/ 75/P2, -1B70C/P2, and -1B74/75/P2 turbofan engines. This AD was prompted by a report of the failure of the high-pressure turbine (HPT) stage 1 blade retainer and subsequent in-flight shutdown of the engine. This AD requires inspection of the HPT stage 1 blade retainer. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/12/19/2017-27248/airworthiness-directives-general-electric-company-turbofan-engines)
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