# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2020-06-19 · Effective 2020-07-24 · 85 FR 37000
## Document
- **Document number:** 2020-13126
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 37000
- **Publication date:** 2020-06-19
- **Effective date:** 2020-07-24
- **FAA docket:** Docket No. FAA-2019-0683
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2017-09-06 for all General Electric Company (GE) GEnx-1B and GEnx-2B model turbofan engines. AD 2017-09-06 required updating electronic engine control (EEC) full authority digital electronic control (FADEC) software on GEnx-1B and GEnx-2B turbofan engines and replacing a certain fan hub frame assembly part installed on GEnx-2B turbofan engines. This AD requires updating EEC software on GEnx-1B and GEnx-2B engines and replacing a certain fan hub frame assembly part installed on GEnx-2B engines. This AD was prompted by the development of a design change by GE to remove the unsafe condition. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/06/19/2020-13126/airworthiness-directives-general-electric-company-turbofan-engines)
---
*AI Analytics · CC0 1.0*