# Proposed AD 2001-NE-20-AD: CFM International, S.A. CFM56-5 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-02-13
- Products: CFM International
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 19, 2001, 66 FR 53131
- Comments due: December 18, 2001
- Became: [AD 2002-02-13](https://openairdocs.org/ad/2002-02-13)
- Docket: 2001-NE-20-AD
- FR document: 01-26325
- Official PDF: https://openairdocs.org/files/sha256/63/3a/633aa18ccafd6feabfa34975c91af12ff76ce2d38ba034d2c4590834d800ac3f (from https://www.govinfo.gov/content/pkg/FR-2001-10-19/pdf/01-26325.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/10/19/01-26325/airworthiness-directives-cfm-international-sa-cfm56-5-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A932EB9343F1850586256AEF005DE2FB.0001
- Page: https://openairdocs.org/proposed/2001-NE-20-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to CFM International, S.A. (CMFI) CFM56 -5 series turbofan engines. This proposal would require replacement of the magnetic drain plug on certain part number (P/N) air turbine engine starters manufactured by Honeywell Engines & Systems. This proposal is prompted by three instances of uncontained air turbine engine starter failures, resulting in cowl damage. The actions specified by the proposed AD are intended to prevent uncontained failure of the starter and possible damage to the airplane.

## Notices in this docket

- Oct 19, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-26325, comments due Dec 18, 2001 (https://www.federalregister.gov/documents/2001/10/19/01-26325/airworthiness-directives-cfm-international-sa-cfm56-5-series-turbofan-engines)

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