# Proposed AD FAA-2021-1070: Diamond Aircraft Industries GmbH Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-21-15
- Products: Diamond Aircraft Industries
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 14, 2021, 86 FR 70987
- Comments due: January 28, 2022
- Became: [AD 2022-21-15](https://openairdocs.org/ad/2022-21-15)
- Docket: FAA-2021-1070 (https://www.regulations.gov/docket/FAA-2021-1070, where comments are filed)
- Project: 2020-CE-004-AD
- FR document: 2021-26976
- Official PDF: https://openairdocs.org/files/sha256/78/ba/78ba2842b74ec54e490927eab861344da9e07af02e44386979450a4283437ccc (from https://www.govinfo.gov/content/pkg/FR-2021-12-14/pdf/2021-26976.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/12/14/2021-26976/airworthiness-directives-diamond-aircraft-industries-gmbh-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2021-26976-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2021-1070

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Diamond Aircraft Industries GmbH (DAI) Model DA 42, DA 42 NG, and DA 42 M-NG airplanes. 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 a loose rudder T-yoke axle nut. This proposed AD would require replacing the rudder T-yoke axle with an improved rudder T-yoke axle. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 14, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-26976, comments due Jan 28, 2022 (https://www.federalregister.gov/documents/2021/12/14/2021-26976/airworthiness-directives-diamond-aircraft-industries-gmbh-airplanes)

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