# Proposed AD FAA-2021-0606: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-24-11
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 30, 2021, 86 FR 40964
- Comments due: September 13, 2021
- Became: [AD 2021-24-11](https://openairdocs.org/ad/2021-24-11)
- Docket: FAA-2021-0606 (https://www.regulations.gov/docket/FAA-2021-0606, where comments are filed)
- Project: 2019-SW-070-AD
- FR document: 2021-16169
- Official PDF: https://openairdocs.org/files/sha256/3d/78/3d7829f753e710e1210d772c1598293bc9ebbf1505dd6198d55df8b4a7dc4d01 (from https://www.govinfo.gov/content/pkg/FR-2021-07-30/pdf/2021-16169.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/07/30/2021-16169/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/02F0B93E0B903D36862587220068342F.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0606

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model A109E, A109S, and AW109SP helicopters. This proposed AD was prompted by reports of main landing gear (MLG) wheel assembly failure. This proposed AD would require repetitive inspections of each affected MLG strut assembly and, depending on the findings, replacement of an affected MLG strut assembly with a serviceable assembly, or application of corrosion preventive compound, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 30, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-16169, comments due Sep 13, 2021 (https://www.federalregister.gov/documents/2021/07/30/2021-16169/airworthiness-directives-leonardo-spa-helicopters)

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