# Proposed AD FAA-2021-0667: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-03-14
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 18, 2021, 86 FR 46164
- Comments due: October 4, 2021
- Became: [AD 2022-03-14](https://openairdocs.org/ad/2022-03-14)
- Docket: FAA-2021-0667 (https://www.regulations.gov/docket/FAA-2021-0667, where comments are filed)
- Project: MCAI-2021-00580-T
- FR document: 2021-17196
- Official PDF: https://openairdocs.org/files/sha256/3a/2a/3a2a53d1532fb572cf2848f050e272f6abe104904a52bc87e05716e89865bc43 (from https://www.govinfo.gov/content/pkg/FR-2021-08-18/pdf/2021-17196.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/18/2021-17196/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2EBC1C1DD9ED8AA4862587350069D4BA.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0667

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by a report that during type certification activity, it was identified that certain monitoring software was incorrectly implemented in the braking control system (BCS) certification standard. This proposed AD would require installing (updating) certain software for the braking and steering system, 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

- Aug 18, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-17196, comments due Oct 4, 2021 (https://www.federalregister.gov/documents/2021/08/18/2021-17196/airworthiness-directives-airbus-sas-airplanes)

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