# Proposed AD FAA-2023-1217: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-19-01
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 20, 2023, 88 FR 39796
- Comments due: August 4, 2023
- Became: [AD 2023-19-01](https://openairdocs.org/ad/2023-19-01)
- Docket: FAA-2023-1217 (https://www.regulations.gov/docket/FAA-2023-1217, where comments are filed)
- Project: MCAI-2023-00477-T
- FR document: 2023-13011
- Official PDF: https://openairdocs.org/files/sha256/4d/5f/4d5fd78944d21f209ad4cba81005585bc05506ff479d7a8bd610ea2df96cd094 (from https://www.govinfo.gov/content/pkg/FR-2023-06-20/pdf/2023-13011.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/06/20/2023-13011/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-13011-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1217

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-200 series; A330-200 Freighter series; A330-300 series; A330-800 series; A330-900 series; A340-200 series; and A340-300 series airplanes. This proposed AD was prompted by reports of cracks found in the scroll housing assembly of Honeywell GTCP331-350 auxiliary power units (APUs). This proposed AD would require replacing each affected APU or re-identifying certain APU scroll housing assemblies, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). This proposed AD would also prohibit 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

- Jun 20, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-13011, comments due Aug 4, 2023 (https://www.federalregister.gov/documents/2023/06/20/2023-13011/airworthiness-directives-airbus-sas-airplanes)

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