# Airworthiness Directives; Alpha Aviation Concept Limited Airplanes
> **Rule** · Final rule. · Published 2012-10-05 · Effective 2012-11-09 · 77 FR 60887
## Document
- **Document number:** 2012-24278
- **Category:** airworthiness
- **Manufacturer:** Alpha Aviation Concept Limited
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 60887
- **Publication date:** 2012-10-05
- **Effective date:** 2012-11-09
- **FAA docket:** Docket No. FAA-2012-0798
## Abstract

We are adopting a new airworthiness directive (AD) for Alpha Aviation Concept Limited Model R2160 Airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as possible installation of non-conforming air filter elements that are not fitted with metallic mesh and could internally collapse resulting in disruption of the powerplant operation. We are issuing this AD to require actions to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/10/05/2012-24278/airworthiness-directives-alpha-aviation-concept-limited-airplanes)
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