# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2016-02-26 · Effective 2016-04-01 · 81 FR 9751
## Document
- **Document number:** 2016-04031
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 9751
- **Publication date:** 2016-02-26
- **Effective date:** 2016-04-01
- **FAA docket:** Docket No. FAA-2015-2984
## Abstract

We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GEnx-1B54, -1B58, -1B64, -1B67, and -1B70 turbofan engine models. This AD was prompted by reports of two separate, single engine in-flight shutdowns (IFSDs) caused by high-pressure turbine (HPT) rotor stage 1 blade failure. This AD requires inspection and conditional removal of affected HPT rotor stage 1 blades. We are issuing this AD to prevent failure of the HPT rotor stage 1 blades, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/02/26/2016-04031/airworthiness-directives-general-electric-company-turbofan-engines)
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