# Airworthiness Directives; Agusta S.p.A. (Type Certificate Currently Held by AgustaWestland S.p.A.) (Agusta) Helicopters
> **Rule** · Final rule. · Published 2015-02-10 · Effective 2015-03-17 · 80 FR 7300
## Document
- **Document number:** 2015-01809
- **Category:** airworthiness
- **Manufacturer:** Agusta S.p.A. (Type Certificate Currently Held by AgustaWestland S.p.A.) (Agusta)
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 80 FR 7300
- **Publication date:** 2015-02-10
- **Effective date:** 2015-03-17
- **FAA docket:** Docket No. FAA-2014-0465
## Abstract

We are adopting a new airworthiness directive (AD) for Agusta AB139 and AW139 helicopters to require replacing certain single-braided flexible hydraulic hoses with double-braided flexible hydraulic hoses. This AD was prompted by occurrences of leaking flexible hydraulic hoses. The actions of this AD are intended to prevent loss of hydraulic power and subsequent loss of helicopter control.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/02/10/2015-01809/airworthiness-directives-agusta-spa-type-certificate-currently-held-by-agustawestland-spa-agusta)
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