# Airworthiness Directives; Airbus Helicopters

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking (NPRM). |
| Published | 2026-09-01 |
| Comments close | 2026-10-16 |
| Significant | No |
| CFR parts | 14 CFR 39 |
| Summary | The FAA proposes to supersede Airworthiness Directive (AD) 2025-08-06, which applies to certain Airbus Helicopters Model SA330J helicopters. AD 2025-08-06 requires repetitively inspecting for a gap between the main gearbox (MGB) oil cooling fan assembly rotor blade and the upper section of the guide vane bearing housing, replacing the MGB fan rotor bearings with serviceable bearings if necessary, and at a later compliance time replacing the MGB fan rotor bearing assembly with an improved MGB fan rotor bearing assembly, which constitutes terminating action for the repetitive inspections. Since  |
| Document number | 2026-17840 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/01/2026-17840/airworthiness-directives-airbus-helicopters). Last refreshed: 2026-11-04T09:17:43.641Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.