# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule; request for comments. · Published 2018-12-31 · Effective 2019-01-15 · 83 FR 67680
## Document
- **Document number:** 2018-28419
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 83 FR 67680
- **Publication date:** 2018-12-31
- **Effective date:** 2019-01-15
- **FAA docket:** Docket No. FAA-2018-1065
## Abstract

We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A320-214, A320-232, A320-233, A321-211 and A321-231 airplanes. This AD was prompted by an investigation that revealed that the outer cylinder of a certain ram air turbine (RAT) actuator was not properly deburred in accordance with manufacturing specifications. This AD requires a replacement of affected RAT actuators. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/12/31/2018-28419/airworthiness-directives-airbus-sas-airplanes)
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