# Proposed AD FAA-2021-0842: Stemme AG Gliders

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-26-12
- Products: Stemme
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 8, 2021, 86 FR 56225
- Comments due: November 22, 2021
- Became: [AD 2021-26-12](https://openairdocs.org/ad/2021-26-12)
- Docket: FAA-2021-0842 (https://www.regulations.gov/docket/FAA-2021-0842, where comments are filed)
- Project: 2019-CE-032-AD
- FR document: 2021-21934
- Official PDF: https://openairdocs.org/files/sha256/55/32/5532e7cd4fb3857327c3ef0080d7434a1f72a7c6197b0fda315c6ab757cffb9e (from https://www.govinfo.gov/content/pkg/FR-2021-10-08/pdf/2021-21934.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/10/08/2021-21934/airworthiness-directives-stemme-ag-gliders
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/49CDD48CD073DA2B862587680066089B.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0842

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Stemme AG Model Stemme S 12 gliders. This proposed AD was prompted by 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 the incorrect installation of an axle connecting the main landing gear (MLG) to the center steel frame. This proposed AD would require inspecting the MLG installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 8, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-21934, comments due Nov 22, 2021 (https://www.federalregister.gov/documents/2021/10/08/2021-21934/airworthiness-directives-stemme-ag-gliders)

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