# Proposed AD FAA-2025-0019: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-09-06
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 6, 2025, 90 FR 9069
- Comments due: March 24, 2025
- Became: [AD 2025-09-06](https://openairdocs.org/ad/2025-09-06)
- Docket: FAA-2025-0019 (https://www.regulations.gov/docket/FAA-2025-0019, where comments are filed)
- Project: MCAI-2023-01218-R
- FR document: 2025-02250
- Official PDF: https://openairdocs.org/files/sha256/0f/a0/0fa0eb2af2142fc0eabff9e36e2ee81a0a5dc4712888bbb5cc98cf15cde846ff (from https://www.govinfo.gov/content/pkg/FR-2025-02-06/pdf/2025-02250.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/02/06/2025-02250/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-02250-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0019

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Leonardo S.p.a. Model A119 and AW119 MKII helicopters. This proposed AD was prompted by a report of an electrical failure of the starter-generator, due to a rupture of the drive shaft, which resulted in a partial loss of battery power. This proposed AD would require installing a battery discharge detector and revising the existing Rotorcraft Flight Manual (RFM) for the helicopter, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 6, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-02250, comments due Mar 24, 2025 (https://www.federalregister.gov/documents/2025/02/06/2025-02250/airworthiness-directives-leonardo-spa-helicopters)

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