# Proposed AD FAA-2022-0514: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-18-04
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 3, 2022, 87 FR 33658
- Comments due: July 18, 2022
- Became: [AD 2022-18-04](https://openairdocs.org/ad/2022-18-04)
- Docket: FAA-2022-0514 (https://www.regulations.gov/docket/FAA-2022-0514, where comments are filed)
- Project: AD-2022-00357-E
- FR document: 2022-11896
- Official PDF: https://openairdocs.org/files/sha256/da/35/da3511608626fa493146406adfda9150086d46c5c120074b5bb225bcb095574a (from https://www.govinfo.gov/content/pkg/FR-2022-06-03/pdf/2022-11896.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/06/03/2022-11896/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-11896-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0514

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-1B model turbofan engines. This proposed AD was prompted by several reports of fuel leaks caused by high cycle fatigue (HCF) cracks found at the braze joints on fuel manifolds, and the subsequent manufacturer redesign of the high- pressure turbine (HPT) fuel hose variable stator vane (VSV) manifold, VSV fuel hose manifold, low-pressure turbine (LPT) fuel hose variable bleed valve (VBV) manifold, and VBV fuel hose manifold. This proposed AD would require removal and replacement of the fuel hydraulic lines. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 3, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-11896, comments due Jul 18, 2022 (https://www.federalregister.gov/documents/2022/06/03/2022-11896/airworthiness-directives-general-electric-company-turbofan-engines)

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