# Proposed AD FAA-2012-0982: Stemme GmbH & Co. KG Powered Sailplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-24-02
- Products: Stemme
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 18, 2012, 77 FR 57531
- Comments due: November 2, 2012
- Became: [AD 2012-24-02](https://openairdocs.org/ad/2012-24-02)
- Docket: FAA-2012-0982 (https://www.regulations.gov/docket/FAA-2012-0982, where comments are filed)
- Project: 2012-CE-035-AD
- FR document: 2012-22941
- Official PDF: https://openairdocs.org/files/sha256/76/c4/76c4c687ec546217d5814611ef9d0b045d1db0d73bab86561e76fc45504033f9 (from https://www.govinfo.gov/content/pkg/FR-2012-09-18/pdf/2012-22941.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/09/18/2012-22941/airworthiness-directives-stemme-gmbh-and-co-kg-powered-sailplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/16C152F3F381ED7F86257A7D0050B277.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0982

## Summary

We propose to adopt a new airworthiness directive (AD) for all Stemme GmbH & Co. KG Models S10, S10-V, and S10-VT powered sailplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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 proposed AD to require actions to address the unsafe condition on these products.

## Notices in this docket

- Sep 18, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-22941, comments due Nov 2, 2012 (https://www.federalregister.gov/documents/2012/09/18/2012-22941/airworthiness-directives-stemme-gmbh-and-co-kg-powered-sailplanes)

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