# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule. · Published 2025-09-02 · Effective 2025-10-07 · 90 FR 42310
## Document
- **Document number:** 2025-16761
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 90 FR 42310
- **Publication date:** 2025-09-02
- **Effective date:** 2025-10-07
- **FAA docket:** Docket No. FAA-2025-0752
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC 130 B4 and EC 130 T2 helicopters. This AD was prompted by a report of heavy damage on the fenestron due to the loss of the tail rotor (TR) blade, which broke at the TR hub tension- torsion bar (tension-torsion bar). This AD requires inspecting the tension-torsion bar and, depending on the inspection results, replacing the part with a serviceable part. This AD also prohibits performing maintenance using certain maintenance manuals. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/09/02/2025-16761/airworthiness-directives-airbus-helicopters)
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