# Proposed AD FAA-2016-9490: General Electric Company Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-11-15
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 23, 2017, 82 FR 7734
- Comments due: March 9, 2017
- Became: [AD 2017-11-15](https://openairdocs.org/ad/2017-11-15)
- Docket: FAA-2016-9490 (https://www.regulations.gov/docket/FAA-2016-9490, where comments are filed)
- Project: 2016-NE-26-AD
- FR document: 2017-01227
- Official PDF: https://openairdocs.org/files/sha256/9e/68/9e685466736e1906e428ea4a829e05033a37f36e06ce76c62837f999416d6897 (from https://www.govinfo.gov/content/pkg/FR-2017-01-23/pdf/2017-01227.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/01/23/2017-01227/airworthiness-directives-general-electric-company-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/02022F97B8DE79AB862580B100522625.0001
- Page: https://openairdocs.org/proposed/FAA-2016-9490

## Summary

We propose to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) CF6-80C2L1F turbofan engines. This proposed AD was prompted by a reduction in the life limit of the affected engines which is the result of a revised operating profile. This proposed AD would require replacement of the high-pressure turbine (HPT) spacer/impeller, part number (P/N) 1539M12P02, at a newer, lower life limit. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- Jan 23, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-01227, comments due Mar 9, 2017 (https://www.federalregister.gov/documents/2017/01/23/2017-01227/airworthiness-directives-general-electric-company-turbofan-engines)

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