# Proposed AD FAA-2022-1064: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-22-09
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 29, 2022, 87 FR 52705
- Comments due: October 13, 2022
- Became: [AD 2022-22-09](https://openairdocs.org/ad/2022-22-09)
- Docket: FAA-2022-1064 (https://www.regulations.gov/docket/FAA-2022-1064, where comments are filed)
- Project: MCAI-2022-00342-T
- FR document: 2022-18452
- Official PDF: https://openairdocs.org/files/sha256/77/ca/77ca3202544794b82b3d2baee8e29b5374d7f53628997d4dbcb9e101fee8309c (from https://www.govinfo.gov/content/pkg/FR-2022-08-29/pdf/2022-18452.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/08/29/2022-18452/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-18452-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-1064

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-1041 airplanes. This proposed AD was prompted by a report of rejected take-offs after transient engine N1 shaft speed exceedance. This proposed AD would require replacing certain hydro-mechanical units (HMUs) with serviceable HMUs before reaching a reduced life limit, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. This proposed AD would also limit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 29, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-18452, comments due Oct 13, 2022 (https://www.federalregister.gov/documents/2022/08/29/2022-18452/airworthiness-directives-airbus-sas-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.