# Airworthiness Directives; Textron Aviation Inc. Airplanes
> **Rule** · Final rule. · Published 2018-04-10 · Effective 2018-05-15 · 83 FR 15310
## Document
- **Document number:** 2018-06951
- **Category:** airworthiness
- **Manufacturer:** Textron Aviation Inc.
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 15310
- **Publication date:** 2018-04-10
- **Effective date:** 2018-05-15
- **FAA docket:** Docket No. FAA-2017-1120
## Abstract

We are adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. Models 510, 680, and 680A airplanes equipped with certain part number brake assemblies. This AD was prompted by a report that brake pad wear indicator pins were set incorrectly, which could lead to brake pad wear beyond the acceptable limits without indication. This AD requires inspection of the brake pad wear indicator pins and replacement of the brake assembly if any pin is set incorrectly. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/04/10/2018-06951/airworthiness-directives-textron-aviation-inc-airplanes)
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