# Airworthiness Directives; Airbus SAS Airplanes

**Action Urgency Score:** 55/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking (NPRM). |
| Published | 2026-09-22 |
| Comments close | 2026-11-06 |
| Significant | No |
| CFR parts | 14 CFR 39 |
| 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. |
| Document number | 2026-19360 |

## Why this score
- Comment deadline within 30 days.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/22/2026-19360/airworthiness-directives-airbus-sas-airplanes). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.