# Proposed AD FAA-2021-0657: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-03-10
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 12, 2021, 86 FR 44319
- Comments due: September 27, 2021
- Became: [AD 2022-03-10](https://openairdocs.org/ad/2022-03-10)
- Docket: FAA-2021-0657 (https://www.regulations.gov/docket/FAA-2021-0657, where comments are filed)
- Project: MCAI-2021-00478-T
- FR document: 2021-16934
- Official PDF: https://openairdocs.org/files/sha256/7c/4f/7c4f40225183fe56f8336eb0d8ad5cb70d566130a45209b82867b1e042c4c92f (from https://www.govinfo.gov/content/pkg/FR-2021-08-12/pdf/2021-16934.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/12/2021-16934/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C5D2B76213A00D5D8625872F00777024.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0657

## 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 indicating that during maintenance, a fuse pin retaining the main landing gear support structure (MLGSS) was found incorrectly engaged in the trunnion block and improperly secured with the associated retaining pin, due to incorrect installation during assembly. This proposed AD would require inspecting the fuse pins and associated retaining pins of the MLGSS for such discrepancies, and corrective action if necessary, 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 12, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-16934, comments due Sep 27, 2021 (https://www.federalregister.gov/documents/2021/08/12/2021-16934/airworthiness-directives-airbus-sas-airplanes)

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