# Proposed AD FAA-2008-0685: Stemme GmbH & Co. KG Model S10-VT Powered Sailplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Stemme
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 3, 2008, 73 FR 38160
- Comments due: August 4, 2008
- Docket: FAA-2008-0685 (https://www.regulations.gov/docket/FAA-2008-0685, where comments are filed)
- Project: 2008-CE-039-AD
- FR document: E8-15177
- Official PDF: https://openairdocs.org/files/sha256/19/4d/194df337f8013a8bd6639facba282f5915fa688ff51007bcc2e15e1cdd43db82 (from https://www.govinfo.gov/content/pkg/FR-2008-07-03/pdf/E8-15177.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/07/03/E8-15177/airworthiness-directives-stemme-gmbh-and-co-kg-model-s10-vt-powered-sailplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/97CD6C536D98FAFA8625747B004B4101.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0685

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. 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:

AD 2007-0315-E was issued to address a possible fuel leakage in the gear compartment in front of the engine and mandated inspections and replacement of fuel plastic-made connectors by connectors made of metal. Since its publication, another fuel leakage has been reported on a S10-VT which had implemented the STEMME Service Bulletin (SB) A31-10-082 as required by AD 2007-0315-E.

It has been determined that the fuel leak may have been caused by the deformation that the originally installed clamps created on the fuel hoses and thus preventing the new clamps from being sufficiently pinched to perform a correct tightening.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Jun 23, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-14078, comments due Jul 23, 2008 (https://www.federalregister.gov/documents/2008/06/23/E8-14078/airworthiness-directives-diamond-aircraft-industries-gmbh-model-da-42-airplanes)
- Jul 3, 2008: Notice of proposed rulemaking (NPRM)., FR document E8-15177, comments due Aug 4, 2008 (https://www.federalregister.gov/documents/2008/07/03/E8-15177/airworthiness-directives-stemme-gmbh-and-co-kg-model-s10-vt-powered-sailplanes)

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