# Proposed AD FAA-2021-0827: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-24-20
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 23, 2021, 86 FR 52848
- Comments due: November 8, 2021
- Became: [AD 2021-24-20](https://openairdocs.org/ad/2021-24-20)
- Docket: FAA-2021-0827 (https://www.regulations.gov/docket/FAA-2021-0827, where comments are filed)
- Project: MCAI-2021-00617-T
- FR document: 2021-20405
- Official PDF: https://openairdocs.org/files/sha256/c8/fd/c8fdb025f0b1994a8e8fee07b69d05665faf0c5843ed1332b71d78c02cb6d2c1 (from https://www.govinfo.gov/content/pkg/FR-2021-09-23/pdf/2021-20405.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/09/23/2021-20405/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AA5DE51D700D2BB486258759004E660F.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0827

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by reports of slat transmission jams caused by frozen slat geared rotary actuators (SGRA) at slat 5 track 12. This proposed AD would require repetitive water drainage and plug cleaning of the left- and right-hand SGRA 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 proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 23, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-20405, comments due Nov 8, 2021 (https://www.federalregister.gov/documents/2021/09/23/2021-20405/airworthiness-directives-airbus-sas-airplanes)

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