# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule; request for comments. · Published 2021-04-05 · Effective 2021-04-20 · 86 FR 17512
## Document
- **Document number:** 2021-06911
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 86 FR 17512
- **Publication date:** 2021-04-05
- **Effective date:** 2021-04-20
- **FAA docket:** Docket No. FAA-2021-0182
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-200 series and A330-300 series airplanes. This AD was prompted by reports of cracked flexible hoses in the courier area oxygen system (CAOS). This AD requires repetitive detailed inspections of the CAOS and replacement of affected parts if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/04/05/2021-06911/airworthiness-directives-airbus-sas-airplanes)
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