# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2013-12-03 · Effective 2014-01-07 · 78 FR 72567
## Document
- **Document number:** 2013-28866
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 72567
- **Publication date:** 2013-12-03
- **Effective date:** 2014-01-07
- **FAA docket:** Docket No. FAA-2013-0499
## Abstract

We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GE90-110B1 and -115B turbofan engines. This AD was prompted by multiple events of a leaking variable bypass valve (VBV) actuator fuel supply tube. This AD requires replacement of this VBV actuator fuel supply tube with a part eligible for installation. We are issuing this AD to prevent failure of the affected fuel supply tube, fuel leakage, engine fire, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/12/03/2013-28866/airworthiness-directives-general-electric-company-turbofan-engines)
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