# Proposed AD FAA-2026-3475: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-12-04
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 3, 2026, 91 FR 16867
- Comments due: May 18, 2026
- Became: [AD 2026-12-04](https://openairdocs.org/ad/2026-12-04)
- Docket: FAA-2026-3475 (https://www.regulations.gov/docket/FAA-2026-3475, where comments are filed)
- Project: MCAI-2025-01561-T
- FR document: 2026-06563
- Official PDF: https://openairdocs.org/files/sha256/d5/5b/d55b69b9b6716b05652337658047ffd902ee26fd761036ddd7af1ea580853288 (from https://www.govinfo.gov/content/pkg/FR-2026-04-03/pdf/2026-06563.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/04/03/2026-06563/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-06563-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-3475

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 airplanes. This proposed AD was prompted by a manufacturing investigation that found improper application of the fastener retorque process at the center wing box (CWB) and belly fairing (BF) junctions could lead to insufficient clamping. This proposed AD would require replacing each affected part and applying additional head nut cap protection. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 3, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-06563, comments due May 18, 2026 (https://www.federalregister.gov/documents/2026/04/03/2026-06563/airworthiness-directives-airbus-sas-airplanes)

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