# Proposed AD FAA-2013-0499: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-23-18
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 25, 2013, 78 FR 44899
- Comments due: September 23, 2013
- Became: [AD 2013-23-18](https://openairdocs.org/ad/2013-23-18)
- Docket: FAA-2013-0499 (https://www.regulations.gov/docket/FAA-2013-0499, where comments are filed)
- Project: 2013-NE-20-AD
- FR document: 2013-17884
- Official PDF: https://openairdocs.org/files/sha256/02/49/0249e7ee91f604fd64fa00534c32d0907febee3990adba76bd05ed374319cbe3 (from https://www.govinfo.gov/content/pkg/FR-2013-07-25/pdf/2013-17884.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/07/25/2013-17884/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/70123B8FE3F4A29A86257BB300449E84.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0499

## Summary

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

## Notices in this docket

- Jul 25, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-17884, comments due Sep 23, 2013 (https://www.federalregister.gov/documents/2013/07/25/2013-17884/airworthiness-directives-general-electric-company-turbofan-engines)

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