# Airworthiness Directives; Agusta S.p.A. Model AB 139 and AW 139 Helicopters
> **Rule** · Final rule. · Published 2008-07-10 · Effective 2008-08-14 · 73 FR 39572
## Document
- **Document number:** E8-14720
- **Category:** airworthiness
- **Manufacturer:** Agusta S.p.A. Model AB 139 and AW 139
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 73 FR 39572
- **Publication date:** 2008-07-10
- **Effective date:** 2008-08-14
- **FAA docket:** Docket No. FAA-2008-0256
## Abstract

We are adopting a new airworthiness directive (AD) for Agusta S.p.A. Model AB 139 and AW 139 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) issued by the European Aviation Safety Agency (EASA), the Technical Agent for Italy, with which we have a bilateral agreement, which indicates that the Agusta AB 139's and AW 139's Fuselage Frame 5700 middle section is prone to fatigue damage. The actions are intended to detect cracks in the fuselage frame structure and to prevent structural failure in this area.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/07/10/E8-14720/airworthiness-directives-agusta-spa-model-ab-139-and-aw-139-helicopters)
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