# Proposed AD FAA-2019-0919: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-18-13
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 10, 2020, 85 FR 1292
- Comments due: February 24, 2020
- Became: [AD 2021-18-13](https://openairdocs.org/ad/2021-18-13)
- Docket: FAA-2019-0919 (https://www.regulations.gov/docket/FAA-2019-0919, where comments are filed)
- FR document: 2020-00020
- Official PDF: https://openairdocs.org/files/sha256/99/f6/99f669d55a020cea425456e3fe49021ccafa645a7c321e2788a06c1b7d7fc547 (from https://www.govinfo.gov/content/pkg/FR-2020-01-10/pdf/2020-00020.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/01/10/2020-00020/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/17FF8C0768EC72F1862584EB0049843B.0001
- Page: https://openairdocs.org/proposed/FAA-2019-0919

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF34-8C1, CF34-8C5, CF34-8C5A1, CF34-8C5B1, CF34-8C5A2, CF34-8C5A3, CF34-8E2, CF34-8E2A1, CF34-8E5, CF34-8E5A1, CF34-8E5A2, CF34-8E6, and CF34-8E6A1 turbofan engine models with a certain outer shell combustion liner (combustion outer liner shell) installed. This proposed AD was prompted by two in-flight engine shutdowns (IFSDs) that occurred as a result of failures of the combustion outer liner shell. This proposed AD would require a borescope inspection (BSI) or visual inspection of the combustion outer liner shell and, depending on the results of the inspection, possible replacement of the combustion outer liner shell. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jan 10, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-00020, comments due Feb 24, 2020 (https://www.federalregister.gov/documents/2020/01/10/2020-00020/airworthiness-directives-general-electric-company-turbofan-engines)

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