# Proposed AD FAA-2018-0737: Leonardo S.p.A. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-12-06
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 27, 2018, 83 FR 43561
- Comments due: October 26, 2018
- Became: [AD 2019-12-06](https://openairdocs.org/ad/2019-12-06)
- Docket: FAA-2018-0737 (https://www.regulations.gov/docket/FAA-2018-0737, where comments are filed)
- FR document: 2018-18472
- Official PDF: https://openairdocs.org/files/sha256/91/cd/91cd38c4fc47bb62ba23229b511b6a0d4e31e447c8182269deac4ba5bf96453f (from https://www.govinfo.gov/content/pkg/FR-2018-08-27/pdf/2018-18472.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/08/27/2018-18472/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ECD11B3B25AB1B6B862582F60046E86D.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0737

## Summary

We propose to adopt a new airworthiness directive (AD) for Leonardo S.p.A. (Type Certificate Previously Held by Finmeccanica S.p.A., AgustaWestland S.p.A.) Model AW139 helicopters. This proposed AD would require inspecting and altering the number 1 driveshaft (driveshaft). This proposed AD is prompted by reports of scratches that were found on the driveshaft. The actions of this proposed AD are intended to prevent an unsafe condition on these products.

## Notices in this docket

- Aug 27, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-18472, comments due Oct 26, 2018 (https://www.federalregister.gov/documents/2018/08/27/2018-18472/airworthiness-directives-leonardo-spa-helicopters)

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