# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule. · Published 2021-06-01 · Effective 2021-07-06 · 86 FR 29176
## Document
- **Document number:** 2021-11393
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 29176
- **Publication date:** 2021-06-01
- **Effective date:** 2021-07-06
- **FAA docket:** Docket No. FAA-2021-0145
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model EC130B4 and EC130T2 helicopters. This AD was prompted by a report of cracks and geometrical non-conformities of the tail rotor blades (TRBs); all cracks initiated in the drain hole area at the blade root section. This AD requires cleaning affected parts, visual and dye penetrant inspections for cracks of affected parts, a dimensional inspection to verify conformity of affected parts, and corrective actions 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/2021/06/01/2021-11393/airworthiness-directives-airbus-helicopters)
---
*AI Analytics · CC0 1.0*