# Proposed AD FAA-2020-0649: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-03-07
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 9, 2020, 85 FR 41219
- Comments due: September 8, 2020
- Became: [AD 2021-03-07](https://openairdocs.org/ad/2021-03-07)
- Docket: FAA-2020-0649 (https://www.regulations.gov/docket/FAA-2020-0649, where comments are filed)
- FR document: 2020-14607
- Official PDF: https://openairdocs.org/files/sha256/7c/4c/7c4c017ade0ff3c61bd6ba6038ee3bf9c433d147eba36484c4429a6c80a4849b (from https://www.govinfo.gov/content/pkg/FR-2020-07-09/pdf/2020-14607.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/07/09/2020-14607/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7EF842E29724C8FA862585A0004709BE.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0649

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. (Leonardo) Model AB139 and AW139 helicopters. This proposed AD would require removing certain engine mounting rods from service and prohibit their installation on any helicopter. This proposed AD was prompted by a report of non-conforming engine mounting rods. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Jul 9, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-14607, comments due Sep 8, 2020 (https://www.federalregister.gov/documents/2020/07/09/2020-14607/airworthiness-directives-leonardo-spa-helicopters)

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