# Proposed AD FAA-2021-0127: Leonardo S.p.a. (Type Certificate Previously Held by Agusta S.p.A.) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-10-24
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 8, 2021, 86 FR 13232
- Comments due: April 22, 2021
- Became: [AD 2021-10-24](https://openairdocs.org/ad/2021-10-24)
- Docket: FAA-2021-0127 (https://www.regulations.gov/docket/FAA-2021-0127, where comments are filed)
- Project: MCAI-2020-00829-R
- FR document: 2021-04232
- Official PDF: https://openairdocs.org/files/sha256/72/43/7243432a2f6696991195ff20b980576e71048b1ae1dfb362267c4c54221108c8 (from https://www.govinfo.gov/content/pkg/FR-2021-03-08/pdf/2021-04232.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/03/08/2021-04232/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-agusta-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E69FD45BDC23444D86258692006543CA.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0127

## Summary

The FAA proposes to supersede airworthiness directive (AD) 2015-25-04 for Agusta S.p.A (now Leonardo S.p.a.) Model A109A and A109A II helicopters. AD 2015-25-04 requires inspecting the slider assembly pitch control (slider) for play and replacing the slider if the play exceeds certain limits. Since the FAA issued AD 2015-25-04, further investigation determined the play was caused by a manufacturing issue. This proposed AD would retain certain requirements of AD 2015-25-04, require replacing certain part-numbered sliders as a terminating action for the inspections, and prohibit installing the affected part on any helicopter. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Mar 8, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-04232, comments due Apr 22, 2021 (https://www.federalregister.gov/documents/2021/03/08/2021-04232/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-agusta-spa-helicopters)

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