# Airworthiness Directives; Eurocopter France Model AS-365N2, AS 365 N3, and SA-365N1 Helicopters
> **Rule** · Final rule. · Published 2011-03-10 · Effective 2011-04-14 · 76 FR 13065
## Document
- **Document number:** 2011-4467
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 76 FR 13065
- **Publication date:** 2011-03-10
- **Effective date:** 2011-04-14
- **FAA docket:** Docket No. FAA-2010-0781
## Abstract

This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters. This AD requires replacing the aluminum tail rotor (T/R) blade pitch control shaft with a steel T/R blade pitch control shaft. This AD is prompted by an incident involving a Eurocopter 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 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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/03/10/2011-4467/airworthiness-directives-eurocopter-france-model-as-365n2-as-365-n3-and-sa-365n1-helicopters)
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