# Proposed AD FAA-2018-0633: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-21-12
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 3, 2018, 83 FR 38086
- Comments due: September 17, 2018
- Became: [AD 2018-21-12](https://openairdocs.org/ad/2018-21-12)
- Docket: FAA-2018-0633 (https://www.regulations.gov/docket/FAA-2018-0633, where comments are filed)
- FR document: 2018-16515
- Official PDF: https://openairdocs.org/files/sha256/76/99/769906c35ee9777e75471752033f63c285953d27775f3954a268a19bdf8e88fd (from https://www.govinfo.gov/content/pkg/FR-2018-08-03/pdf/2018-16515.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/08/03/2018-16515/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EA57551EA5AE7CBA862582DE005191C8.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0633

## Summary

We propose to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-2B67, -2B67B, and -2B67/P turbofan engines. This proposed AD was prompted by low-cycle fatigue (LCF) cracking of the fuel manifold leading to an engine fire. This proposed AD would require removal from service of certain fuel manifolds at the next engine shop visit and their replacement with parts eligible for installation. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 3, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-16515, comments due Sep 17, 2018 (https://www.federalregister.gov/documents/2018/08/03/2018-16515/airworthiness-directives-general-electric-company-turbofan-engines)

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