# Proposed AD FAA-2026-8807: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comments due Nov 6
- Products: Airbus A350-941
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 22, 2026, 91 FR 60033
- Comments due: November 6, 2026
- Docket: FAA-2026-8807 (https://www.regulations.gov/docket/FAA-2026-8807, where comments are filed)
- Project: MCAI-2025-01385-T
- FR document: 2026-19360
- Official PDF: https://openairdocs.org/files/sha256/f7/6b/f76b9c8c141f7e7a0b174322e16b1e29d9ebb2dc1b4986c0a9992b7071dfe644 (from https://www.govinfo.gov/content/pkg/FR-2026-09-22/pdf/2026-19360.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/09/22/2026-19360/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-19360-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-8807

## 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 reports of engine health monitoring (EHM) messages requiring premature removal of hydro-mechanical units (HMUs). This proposed AD would require replacing certain HMUs before reaching a reduced life limit and would limit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 22, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-19360, comments due Nov 6, 2026 (https://www.federalregister.gov/documents/2026/09/22/2026-19360/airworthiness-directives-airbus-sas-airplanes)

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