# Proposed AD FAA-2022-0507: Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-14-09
- Products: Saab AB, Support and Services
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 6, 2022, 87 FR 27035
- Comments due: June 21, 2022
- Became: [AD 2022-14-09](https://openairdocs.org/ad/2022-14-09)
- Docket: FAA-2022-0507 (https://www.regulations.gov/docket/FAA-2022-0507, where comments are filed)
- Project: MCAI-2021-01372-T
- FR document: 2022-09420
- Official PDF: https://openairdocs.org/files/sha256/36/49/364966b0cbc251b119c1d327e0d7cacd2f41b80776dc1f7095fe46c48348b6f5 (from https://www.govinfo.gov/content/pkg/FR-2022-05-06/pdf/2022-09420.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/05/06/2022-09420/airworthiness-directives-saab-ab-support-and-services-formerly-known-as-saab-ab-saab-aeronautics
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-09420-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0507

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB 340B airplanes. This proposed AD was prompted by a report that there is no evidence that post-machining stress relief or de- embrittlement post-cadmium plating treatments were performed on certain torque arm center pins. This proposed AD would require replacing each affected torque arm center pin on the main landing gear (MLG), as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. This proposed AD would also prohibit the installation of affected parts. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 6, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-09420, comments due Jun 21, 2022 (https://www.federalregister.gov/documents/2022/05/06/2022-09420/airworthiness-directives-saab-ab-support-and-services-formerly-known-as-saab-ab-saab-aeronautics)

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