# Proposed AD FAA-2021-0621: Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-25-06
- Products: Airbus Defence and Space
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 9, 2021, 86 FR 43437
- Comments due: September 23, 2021
- Became: [AD 2021-25-06](https://openairdocs.org/ad/2021-25-06)
- Docket: FAA-2021-0621 (https://www.regulations.gov/docket/FAA-2021-0621, where comments are filed)
- Project: MCAI-2020-01517-T
- FR document: 2021-16686
- Official PDF: https://openairdocs.org/files/sha256/9a/2b/9a2b0752f13c73b8c0c5112de6fe5c0c69e31f2dce8409ab1c5406b9cde5d439 (from https://www.govinfo.gov/content/pkg/FR-2021-08-09/pdf/2021-16686.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/09/2021-16686/airworthiness-directives-airbus-defense-and-space-sa-formerly-known-as-construcciones-aeronauticas
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6F6228ED773776AF8625872D007976A4.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0621

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2018-25-16, which applies to certain Airbus Defense and Space S.A. Model CN-235, CN-235-200, and CN-235-300 airplanes. AD 2018-25-16 requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2018-25-16, the FAA has determined that additional new or more restrictive airworthiness limitations, including inspections for discrepancies (cracking) of certain structural elements, are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, and repetitive inspections for discrepancies (cracking) of certain structural elements and corrective actions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD toaddress the unsafe condition on these products.

## Notices in this docket

- Aug 9, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-16686, comments due Sep 23, 2021 (https://www.federalregister.gov/documents/2021/08/09/2021-16686/airworthiness-directives-airbus-defense-and-space-sa-formerly-known-as-construcciones-aeronauticas)

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