# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule. · Published 2022-02-10 · Effective 2022-03-17 · 87 FR 7705
## Document
- **Document number:** 2022-02748
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 7705
- **Publication date:** 2022-02-10
- **Effective date:** 2022-03-17
- **FAA docket:** Docket No. FAA-2021-0886
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC120B helicopters. This AD was prompted by a report of geometrical non-conformities in the tail rotor blade (TRB) root section discovered during an accident investigation of a Model EC130B helicopter. Due to the similarity of design and production requirements, certain TRBs for the Model EC120B helicopters were inspected and geometrical non-conformities were also found. This AD requires an inspection (dimensional check) to verify conformity, and replacement of certain TRBs if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/02/10/2022-02748/airworthiness-directives-airbus-helicopters)
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