# Proposed AD 2001-SW-61-AD: Eurocopter France Model AS 365 N3 and EC 155B Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-19-01
- Products: Eurocopter France
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: April 1, 2003, 68 FR 15687
- Comments due: June 2, 2003
- Became: [AD 2003-19-01](https://openairdocs.org/ad/2003-19-01)
- Docket: 2001-SW-61-AD
- FR document: 03-7596
- Official PDF: https://openairdocs.org/files/sha256/f2/f8/f2f879161c39c99628b8ab8ec97837c6eff16c5898b97ade4bf03c91d9cbe495 (from https://www.govinfo.gov/content/pkg/FR-2003-04-01/pdf/03-7596.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/04/01/03-7596/airworthiness-directives-eurocopter-france-model-as-365-n3-and-ec-155b-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0340B4C0812897FE86256CFB005AFC75.0001
- Page: https://openairdocs.org/proposed/2001-SW-61-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS 365 N3 and EC 155B helicopters that would have revised the Airworthiness Limitations section of the maintenance manuals by establishing a new service life limit for the Fenestron pitch change control rod (control rod). That proposal was prompted by a failure of a control rod on a prototype helicopter that led to a precautionary landing. This action revises the proposed rule by requiring replacement of the control rod with an improved reinforced steel airworthy control rod. The actions specified by this proposed AD are intended to prevent failure of the control rod, loss of control of the tail rotor, and subsequent loss of control of the helicopter.

## Notices in this docket

- Oct 2, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-24989, comments due Dec 2, 2002 (https://www.federalregister.gov/documents/2002/10/02/02-24989/airworthiness-directives-eurocopter-france-model-as-365-n3-and-ec-155b-helicopters)
- Apr 1, 2003: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 03-7596, comments due Jun 2, 2003 (https://www.federalregister.gov/documents/2003/04/01/03-7596/airworthiness-directives-eurocopter-france-model-as-365-n3-and-ec-155b-helicopters)

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