# Airworthiness Directives; Agusta S.p.A. Helicopters
> **Rule** · Final rule; request for comments. · Published 2017-09-08 · Effective 2017-09-25 · 82 FR 42441
## Document
- **Document number:** 2017-18972
- **Category:** airworthiness
- **Manufacturer:** Agusta S.p.A.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 82 FR 42441
- **Publication date:** 2017-09-08
- **Effective date:** 2017-09-25
- **FAA docket:** Docket No. FAA-2017-0308
## Abstract

We are superseding Airworthiness Directive (AD) 2015-22-51 for Agusta S.p.A. (Agusta) Model A109A and A109A II helicopters. AD 2015- 22-51 required pre-flight checking and inspecting each main rotor blade (blade) for a crack and replacing any cracked blade. This new AD removes the check and requires inspecting each blade more frequently. This AD is prompted by a crack that was not detected during any of the pre-flight checks. The actions of this AD are intended to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/08/2017-18972/airworthiness-directives-agusta-spa-helicopters)
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