# Proposed AD FAA-2022-0977: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-21-06
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 1, 2022, 87 FR 46906
- Comments due: September 15, 2022
- Became: [AD 2022-21-06](https://openairdocs.org/ad/2022-21-06)
- Docket: FAA-2022-0977 (https://www.regulations.gov/docket/FAA-2022-0977, where comments are filed)
- Project: AD-2022-00419-E
- FR document: 2022-16011
- Official PDF: https://openairdocs.org/files/sha256/ff/27/ff2766c42b7e70cc46f4fd60b6cb2799c4c819c5e0b5692cbfbe261352b07d1b (from https://www.govinfo.gov/content/pkg/FR-2022-08-01/pdf/2022-16011.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/08/01/2022-16011/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-16011-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0977

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8C and CF34-8E model turbofan engines. This proposed AD was prompted by a report of a crack found on the low-pressure turbine (LPT) stage 5 disk at the forward arm area. This proposed AD would require the removal of the affected LPT stage 5 disk and replacement with a part eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 1, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-16011, comments due Sep 15, 2022 (https://www.federalregister.gov/documents/2022/08/01/2022-16011/airworthiness-directives-general-electric-company-turbofan-engines)

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