# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule. · Published 2021-12-23 · Effective 2022-01-27 · 86 FR 72838
## Document
- **Document number:** 2021-27828
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 72838
- **Publication date:** 2021-12-23
- **Effective date:** 2022-01-27
- **FAA docket:** Docket No. FAA-2021-0827
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by reports of slat transmission jams caused by frozen slat geared rotary actuators (SGRAs) at slat 5 track 12. This AD requires repetitive water drainage and plug cleaning of the left- and right-hand SGRAs having a certain part number installed on slat 5 track 12 with certain functional item numbers, 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/2021/12/23/2021-27828/airworthiness-directives-airbus-sas-airplanes)
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