# Proposed AD FAA-2021-0687: Leonardo S.p.a. Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-22-09
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 23, 2021, 86 FR 47033
- Comments due: October 7, 2021
- Became: [AD 2021-22-09](https://openairdocs.org/ad/2021-22-09)
- Docket: FAA-2021-0687 (https://www.regulations.gov/docket/FAA-2021-0687, where comments are filed)
- Project: 2019-SW-029-AD
- FR document: 2021-17949
- Official PDF: https://openairdocs.org/files/sha256/c8/3a/c83a5c7526788c54a5010f66e34022689e9c5373b4d58072e1132f86f06d8629 (from https://www.govinfo.gov/content/pkg/FR-2021-08-23/pdf/2021-17949.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/23/2021-17949/airworthiness-directives-leonardo-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ABDA83F341C4CAAB8625873A00749D2C.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0687

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AW189 helicopters. This proposed AD was prompted by a report that a number of fairleads that support the engine combustion chamber D1 drain hose showed evidence of heat damage. This proposed AD would require modifying the helicopter by installing a certain engine combustion chamber D1 drain assembly, 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 23, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-17949, comments due Oct 7, 2021 (https://www.federalregister.gov/documents/2021/08/23/2021-17949/airworthiness-directives-leonardo-spa-helicopters)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.