# Airworthiness Directives; Eurocopter France Helicopters
> **Rule** · Final rule. · Published 2013-03-26 · Effective 2013-04-30 · 78 FR 18230
## Document
- **Document number:** 2013-06133
- **Category:** airworthiness
- **Manufacturer:** Eurocopter France
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 18230
- **Publication date:** 2013-03-26
- **Effective date:** 2013-04-30
- **FAA docket:** Docket No. FAA-2012-0772
## Abstract

We are adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC130 B4 helicopters with a cabin vibration damper installed. This AD requires installing a vibration damper casing assembly on both sides of the helicopter. This AD was prompted by a crack and failure of a cabin vibration damper blade. The actions of this AD are intended to modify the cabin vibration damper assembly to prevent contact with the flight controls in the event of a cabin vibration blade failure, jamming of a flight control, and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/03/26/2013-06133/airworthiness-directives-eurocopter-france-helicopters)
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