# Proposed AD FAA-2021-0695: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-22-10
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 25, 2021, 86 FR 47427
- Comments due: October 12, 2021
- Became: [AD 2021-22-10](https://openairdocs.org/ad/2021-22-10)
- Docket: FAA-2021-0695 (https://www.regulations.gov/docket/FAA-2021-0695, where comments are filed)
- Project: MCAI-2021-00096-R
- FR document: 2021-18257
- Official PDF: https://openairdocs.org/files/sha256/11/dc/11dceaea4112443694c2fe5c621e8520bbd784d2e44d15adfc29adf0d53b71f6 (from https://www.govinfo.gov/content/pkg/FR-2021-08-25/pdf/2021-18257.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/25/2021-18257/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2D1487ED84CEEE8D8625873C005052D6.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0695

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model A109E helicopters. This proposed AD was prompted by reports that certain tail rotor gearbox assemblies were installed on Model A109E helicopters and those parts are not approved for installation on that helicopter model. Because those assemblies are not part of the type design for Model A109E helicopters, there are no overhaul or life limits included in the applicable maintenance manuals. This proposed AD would require replacement of each affected tail rotor gearbox assembly with a serviceable part, 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

- Aug 25, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-18257, comments due Oct 12, 2021 (https://www.federalregister.gov/documents/2021/08/25/2021-18257/airworthiness-directives-leonardo-spa-helicopters)

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