# Airworthiness Directives; Agusta S.p.A. Helicopters
> **Rule** · Final rule; request for comments. · Published 2012-01-24 · Effective 2012-02-08 · 77 FR 3382
## Document
- **Document number:** 2012-366
- **Category:** airworthiness
- **Manufacturer:** Agusta S.p.A.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 77 FR 3382
- **Publication date:** 2012-01-24
- **Effective date:** 2012-02-08
- **FAA docket:** Docket No. FAA-2011-1454
## Abstract

We are adopting a new airworthiness directive (AD) for all Agusta S.p.A. (Agusta) model A109S and AW109SP helicopters. This AD is prompted by a fatigue crack found in the left elevator assembly along the riveting of the upper skin to the fourth rib on an Agusta A109S helicopter. These actions are intended to detect a crack, which could lead to a failure of the elevator, reduced maneuverability of the helicopter, and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/01/24/2012-366/airworthiness-directives-agusta-spa-helicopters)
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