# Airworthiness Directives; American Champion Aircraft Corp.
> **Rule** · Final rule; request for comments. · Published 2017-04-12 · Effective 2017-04-12 · 82 FR 17542
## Document
- **Document number:** 2017-06960
- **Category:** airworthiness
- **Manufacturer:** American Champion
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 82 FR 17542
- **Publication date:** 2017-04-12
- **Effective date:** 2017-04-12
- **FAA docket:** Docket No. FAA-2017-0283
## Abstract

We are adopting a new airworthiness directive (AD) for certain American Champion Aircraft Corp. Model 8KCAB airplanes. This AD requires fabrication and installation of a placard to prohibit aerobatic flight, inspection of the aileron hinge rib and support, and a reporting requirement of the inspection results to the FAA. This AD was prompted by a report of a cracked hinge support and cracked hinge ribs, which resulted in partial loss of control with the aileron binding against the cove. We are issuing this AD to correct the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/04/12/2017-06960/airworthiness-directives-american-champion-aircraft-corp)
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