# Airworthiness Directives; Stemme GmbH & Co. KG Powered Sailplanes
> **Rule** · Final rule. · Published 2012-12-03 · Effective 2013-01-07 · 77 FR 71487
## Document
- **Document number:** 2012-28819
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 71487
- **Publication date:** 2012-12-03
- **Effective date:** 2013-01-07
- **FAA docket:** Docket No. FAA-2012-0982
## Abstract

We are adopting a new airworthiness directive (AD) for all Stemme GmbH & Co. KG Models S10, S10-V, and S10-VT powered sailplanes. 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 unapproved rubber hoses installed in the engine fuel, oil, and cooling systems, which could lead to a system leak and result in an engine fire. 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/2012/12/03/2012-28819/airworthiness-directives-stemme-gmbh-and-co-kg-powered-sailplanes)
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