# Airworthiness Directives; PZL Swidnik S.A. Helicopters
> **Rule** · Final rule; request for comments. · Published 2020-07-27 · Effective 2020-08-11 · 85 FR 45059
## Document
- **Document number:** 2020-16120
- **Category:** airworthiness
- **Manufacturer:** PZL Swidnik S.A.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 85 FR 45059
- **Publication date:** 2020-07-27
- **Effective date:** 2020-08-11
- **FAA docket:** Docket No. FAA-2018-0753
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain PZL Swidnik S.A. (PZL) Model W-3A helicopters. This AD requires repetitive inspections of the main transmission (Main XSMN) case for a crack, and depending on the inspection outcome, removing the WR-3 Main XSMN from service before further flight. This AD was prompted by a report of cracks in a Main XSMN case. The actions of this AD are intended to address an unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/07/27/2020-16120/airworthiness-directives-pzl-swidnik-sa-helicopters)
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