# Airworthiness Directives; Viking Air Limited Airplanes
> **Rule** · Final rule; request for comments. · Published 2015-01-29 · Effective 2015-02-18 · 80 FR 4772
## Document
- **Document number:** 2015-00990
- **Category:** airworthiness
- **Manufacturer:** Viking Air Limited
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 80 FR 4772
- **Publication date:** 2015-01-29
- **Effective date:** 2015-02-18
- **FAA docket:** Docket No. FAA-2015-0096
## Abstract

We are adopting a new airworthiness directive (AD) for Viking Air Limited Models DHC-2 Mk. I, DHC-2 Mk. II, and DHC-2 Mk. III airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as failed locknuts on the horizontal stabilizer attach bracket. 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/2015/01/29/2015-00990/airworthiness-directives-viking-air-limited-airplanes)
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