# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule; request for comments. · Published 2021-04-27 · Effective 2021-05-12 · 86 FR 22109
## Document
- **Document number:** 2021-08568
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 86 FR 22109
- **Publication date:** 2021-04-27
- **Effective date:** 2021-05-12
- **FAA docket:** Docket No. FAA-2021-0300
## Abstract

The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS332L2 helicopters. This AD was prompted by the discovery of a main gearbox (MGB) with worn ramps and broken roller cages. This AD requires installing a placard on the pilot instrument panel and replacing certain MGBs. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/04/27/2021-08568/airworthiness-directives-airbus-helicopters)
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