# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule. · Published 2026-03-13 · Effective 2026-04-17 · 91 FR 12289
## Document
- **Document number:** 2026-04967
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 12289
- **Publication date:** 2026-03-13
- **Effective date:** 2026-04-17
- **FAA docket:** Docket No. FAA-2025-5389
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2020-09-15 which applied to certain Airbus Helicopters Model AS332C, AS332C1, AS332L, and AS332L1 helicopters. AD 2020-09-15 required removing the removable parts of the dual hoist installation or removing the de-icing system and allows, for certain helicopters, revising the rotorcraft flight manual (RFM) for the helicopter and installing a placard as an optional method of compliance. Since the FAA issued AD 2020-09-15, analysis revealed that additional vibration level measurements are necessary. This AD retains all the requirements of AD 2020-09-15 and requires for certain helicopters repetitively measuring vibration levels in-flight, and depending on the results, performing corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/03/13/2026-04967/airworthiness-directives-airbus-helicopters)
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