# Proposed AD FAA-2021-0461: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-22-02
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 14, 2021, 86 FR 31451
- Comments due: July 29, 2021
- Became: [AD 2021-22-02](https://openairdocs.org/ad/2021-22-02)
- Docket: FAA-2021-0461 (https://www.regulations.gov/docket/FAA-2021-0461, where comments are filed)
- Project: MCAI-2021-00156-R
- FR document: 2021-12359
- Official PDF: https://openairdocs.org/files/sha256/6b/9d/6b9dff447f935affb9c925c214dd637041a5ce7806f68d1e21e89c2f1b719535 (from https://www.govinfo.gov/content/pkg/FR-2021-06-14/pdf/2021-12359.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/06/14/2021-12359/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A24F4152C0F1DF53862586F5004830BE.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0461

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB139 and AW139 helicopters. This proposed AD was prompted by a report of a short circuit caused by chafing of the electrical wiring in the overhead panel. This proposed AD would require an initial detailed inspection inside the overhead panel for certain helicopters, repetitive detailed inspections inside the overhead panel for all helicopters, and corrective actions 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

- Jun 14, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-12359, comments due Jul 29, 2021 (https://www.federalregister.gov/documents/2021/06/14/2021-12359/airworthiness-directives-leonardo-spa-helicopters)

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