# Proposed AD FAA-2021-0948: Leonardo S.p.a. (Type Certificate Previously Held by Agusta S.p.A.) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-26-24
- Products: Leonardo
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 29, 2021, 86 FR 59890
- Comments due: December 13, 2021
- Became: [AD 2021-26-24](https://openairdocs.org/ad/2021-26-24)
- Docket: FAA-2021-0948 (https://www.regulations.gov/docket/FAA-2021-0948, where comments are filed)
- Project: MCAI-2020-00394-R
- FR document: 2021-23510
- Official PDF: https://openairdocs.org/files/sha256/45/75/457500e80ae06ea51e92b2b2630609b2ff3dc12ef20a8bc5c18fc404a622ae7c (from https://www.govinfo.gov/content/pkg/FR-2021-10-29/pdf/2021-23510.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/10/29/2021-23510/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-agusta-spa-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2021-23510-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0948

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model (type certificate previously held by Agusta S.p.A.) A109A and A109A II helicopters. This proposed AD was prompted by a report of internal corrosion on a main rotor (M/R) blade. This proposed AD would require repetitively inspecting affected M/R blades and accomplishing film analysis and repair in accordance with certain approved methods. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 29, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-23510, comments due Dec 13, 2021 (https://www.federalregister.gov/documents/2021/10/29/2021-23510/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-agusta-spa-helicopters)

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