# Proposed AD FAA-2010-0781: Eurocopter France Model AS-365N2, AS 365 N3, and SA-365N1 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-03-06
- Products: Eurocopter France
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 11, 2010, 75 FR 48618
- Comments due: October 12, 2010
- Became: [AD 2011-03-06](https://openairdocs.org/ad/2011-03-06)
- Docket: FAA-2010-0781 (https://www.regulations.gov/docket/FAA-2010-0781, where comments are filed)
- Project: 2007-SW-49-AD
- FR document: 2010-19823
- Official PDF: https://openairdocs.org/files/sha256/bf/3d/bf3dd0a342cb6318cebb5ca4d6bd6b72671a77f7a120dc1513afa32d2b5951e8 (from https://www.govinfo.gov/content/pkg/FR-2010-08-11/pdf/2010-19823.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/08/11/2010-19823/airworthiness-directives-eurocopter-france-model-as-365n2-as-365-n3-and-sa-365n1-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F4EFF79FA8C578018625777C0051D80A.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0781

## Summary

We propose to adopt a new airworthiness directive (AD) for the specified Eurocopter France model helicopters. This proposed AD would require replacing the aluminum tail rotor (T/R) blade pitch control shaft with a steel T/R blade pitch control shaft. This proposed AD is prompted by an incident involving a Eurocopter France Model AS-365N2 helicopter on which there was a loss of control of the T/R due to a broken shaft. The actions specified by this proposed AD are intended to prevent failure of the T/R blade pitch control shaft, loss of T/R control, and subsequent loss of control of the helicopter.

## Notices in this docket

- Aug 11, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-19823, comments due Oct 12, 2010 (https://www.federalregister.gov/documents/2010/08/11/2010-19823/airworthiness-directives-eurocopter-france-model-as-365n2-as-365-n3-and-sa-365n1-helicopters)

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