# Airworthiness Directives; Leonardo S.p.A. Helicopters (Type Certificate Previously Held By Finmeccanica S.p.A., AgustaWestland S.p.A)
> **Rule** · Final rule; request for comments. · Published 2018-08-03 · Effective 2018-08-20 · 83 FR 38014
## Document
- **Document number:** 2018-16496
- **Category:** airworthiness
- **Manufacturer:** Leonardo S.p.A.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 83 FR 38014
- **Publication date:** 2018-08-03
- **Effective date:** 2018-08-20
- **FAA docket:** Docket No. FAA-2018-0720
## Abstract

We are adopting a new airworthiness directive (AD) for Leonardo S.p.A. (Leonardo) Model A109E, A109S, and AW109SP helicopters with an oil cooler fan assembly (fan assembly) installed. This AD requires inspecting each oil cooler system pulley assembly (pulley assembly) bearing and replacing each fan assembly. This AD is prompted by reports of degraded pulley assembly bearings. The actions of this AD are intended to correct an unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/08/03/2018-16496/airworthiness-directives-leonardo-spa-helicopters-type-certificate-previously-held-by-finmeccanica)
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