# Proposed AD FAA-2026-4639: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-15-10
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 20, 2026, 91 FR 29389
- Comments due: July 6, 2026
- Became: [AD 2026-15-10](https://openairdocs.org/ad/2026-15-10)
- Docket: FAA-2026-4639 (https://www.regulations.gov/docket/FAA-2026-4639, where comments are filed)
- Project: MCAI-2025-01360-T
- FR document: 2026-10047
- Official PDF: https://openairdocs.org/files/sha256/d9/32/d932d876e8d8dea3971406c0cc6b9a97a148e8c2dc7e9fc1c0c934247f263440 (from https://www.govinfo.gov/content/pkg/FR-2026-05-20/pdf/2026-10047.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/05/20/2026-10047/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-10047-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-4639

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-841 and Model A330-941 airplanes. This proposed AD was prompted by reports of crack findings on the sloping rib. This proposed AD would require a repetitive inspection of the external surface of each sloping rib and each slat 1 inboard seal, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 20, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-10047, comments due Jul 6, 2026 (https://www.federalregister.gov/documents/2026/05/20/2026-10047/airworthiness-directives-airbus-sas-airplanes)

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