# Proposed AD FAA-2021-0671: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-21-08
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 18, 2021, 86 FR 46162
- Comments due: October 4, 2021
- Became: [AD 2021-21-08](https://openairdocs.org/ad/2021-21-08)
- Docket: FAA-2021-0671 (https://www.regulations.gov/docket/FAA-2021-0671, where comments are filed)
- Project: 2019-SW-036-AD
- FR document: 2021-17608
- Official PDF: https://openairdocs.org/files/sha256/dd/20/dd20643003b32c345d78af9491ea98928038e311601c73e2c9cacadb8d064448 (from https://www.govinfo.gov/content/pkg/FR-2021-08-18/pdf/2021-17608.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/18/2021-17608/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/18DEFA1392EB3EEF862587350069D55F.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0671

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139 and AW139 helicopters. This proposed AD was prompted by a report of damage (burns) on the tail rotor blades (TRBs). This proposed AD would require an inspection of each TRB for the general condition and any evidence of burns and replacement if necessary, 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 18, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-17608, comments due Oct 4, 2021 (https://www.federalregister.gov/documents/2021/08/18/2021-17608/airworthiness-directives-leonardo-spa-helicopters)

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