# Airworthiness Directives; Leonardo S.p.A. (Type Certificate Previously Held by Finmeccanica S.p.A., AgustaWestland S.p.A) Helicopters
> **Rule** · Final rule. · Published 2018-09-21 · Effective 2018-10-26 · 83 FR 47815
## Document
- **Document number:** 2018-20107
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 47815
- **Publication date:** 2018-09-21
- **Effective date:** 2018-10-26
- **FAA docket:** Docket No. FAA-2017-0619
## Abstract

We are adopting a new airworthiness directive (AD) for Leonardo S.p.A. (Leonardo) Model AW189 helicopters. This AD requires inspecting the tail gearbox (TGB) fitting for a crack. This AD was prompted by a report of a crack on a TGB fitting that was found during a scheduled inspection. The actions of this AD are intended to prevent an unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/09/21/2018-20107/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-finmeccanica-spa)
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