# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2018-07-26 · Effective 2018-08-30 · 83 FR 35421
## Document
- **Document number:** 2018-15876
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 35421
- **Publication date:** 2018-07-26
- **Effective date:** 2018-08-30
- **FAA docket:** Docket No. FAA-2018-0224
## Abstract

We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GEnx-1B engines. This AD was prompted by a report of a center vent tube (CVT) failure leading to a loss of oil pressure and subsequent in-flight engine shutdown. This AD requires removal of an affected extension duct and replacing it with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/07/26/2018-15876/airworthiness-directives-general-electric-company-turbofan-engines)
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