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Data / Federal rules / 2026-15004

Airworthiness Directives; Stemme GmbH Gliders

The Federal Aviation Administration published this final rule in the Federal Register on July 24, 2026. It took effect on July 24, 2026. Comments closed on September 8, 2026.

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What the agency says

The FAA is adopting a new airworthiness directive (AD) for all Stemme GmbH (Stemme) TSA-M Model S6-RT and Stemme S 12 gliders. This AD was prompted by a report of a leaking electrical fuel transfer pump. This AD requires inspecting affected electrical fuel transfer pumps for certain non-conforming parts, and if found, replacing them with approved parts. This AD also prohibits installation of certain non- conforming parts on affected gliders. The FAA is issuing this AD to address the unsafe condition on these products.

Key facts

Document number
2026-15004
Type
Final rule
Action
Final rule; request for comments
Agency
Transportation Department; Federal Aviation Administration
Published
July 24, 2026
Takes effect
July 24, 2026
Comments due
September 8, 2026
Dates
This AD is effective July 24, 2026.
Docket
Docket No. FAA-2026-7222; Project Identifier MCAI-2026-00565-G; Amendment 39-23416; AD 2026-15-04
Regulation ID (RIN)
2120-AA64
Code of Federal Regulations
14 CFR 39
Topics
Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
Pages
4

The document on federalregister.gov PDF

Other documents from the Federal Aviation Administration

Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in July 2026

Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.