# Proposed AD FAA-2021-0371: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-15-07
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 18, 2021, 86 FR 26855
- Comments due: July 2, 2021
- Became: [AD 2021-15-07](https://openairdocs.org/ad/2021-15-07)
- Docket: FAA-2021-0371 (https://www.regulations.gov/docket/FAA-2021-0371, where comments are filed)
- Project: MCAI-2021-00102-T
- FR document: 2021-10377
- Official PDF: https://openairdocs.org/files/sha256/40/9c/409ce971ce54ff0396ef23f95b92a5e2475eb66c1a1fdd5af5aff7b0b0d8e4af (from https://www.govinfo.gov/content/pkg/FR-2021-05-18/pdf/2021-10377.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/05/18/2021-10377/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B5DD65D3794AF189862586DA0047CE72.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0371

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-200, -200 Freighter, -300, -800, and -900 series airplanes; and Model A340-200 and -300 series airplanes. This proposed AD was prompted by reports of incorrect installation of the lower attachment parts of the trimmable horizontal stabilizer actuator (THSA). This proposed AD would require doing a detailed inspection of the THSA lower attachment parts for discrepancies and corrective action if necessary, and would prohibit using earlier versions of certain airplane maintenance manual (AMM) tasks, 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

- May 18, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-10377, comments due Jul 2, 2021 (https://www.federalregister.gov/documents/2021/05/18/2021-10377/airworthiness-directives-airbus-sas-airplanes)

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