# Proposed AD FAA-2017-0313: CFM International S.A. Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Withdrawn
- Products: CFM International
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM); withdrawal.
- Published: September 26, 2018, 83 FR 48575
- Comments due: August 24, 2017
- Docket: FAA-2017-0313 (https://www.regulations.gov/docket/FAA-2017-0313, where comments are filed)
- FR document: 2018-20715
- Official PDF: https://openairdocs.org/files/sha256/d4/b0/d4b04f1d78bee406cbeecc881b62e285d25f95daae6af99904e60e2ffb9514da (from https://www.govinfo.gov/content/pkg/FR-2018-09-26/pdf/2018-20715.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/09/26/2018-20715/airworthiness-directives-cfm-international-sa-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/55FC32F26382636A862583140047DE07.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0313

## Summary

The FAA withdraws an NPRM that published on August 25, 2017 regarding an unsafe condition involving certain CFM International CFM56-7B turbofan engines. The agency subsequently determined that the identified unsafe condition was not adequately addressed by the proposed actions and published two final rules that adequately address the identified unsafe condition.

## Notices in this docket

- Aug 25, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-17828, comments due Oct 10, 2017 (https://www.federalregister.gov/documents/2017/08/25/2017-17828/airworthiness-directives-cfm-international-sa-turbofan-engines)
- Sep 26, 2018: Notice of proposed rulemaking (NPRM); withdrawal., FR document 2018-20715, comments due Aug 24, 2017 (https://www.federalregister.gov/documents/2018/09/26/2018-20715/airworthiness-directives-cfm-international-sa-turbofan-engines)

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