# Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
> **Rule** · Final rule. · Published 2017-06-29 · Effective 2017-08-03 · 82 FR 29368
## Document
- **Document number:** 2017-13405
- **Category:** airworthiness
- **Manufacturer:** Gulfstream Aerospace Corporation
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 29368
- **Publication date:** 2017-06-29
- **Effective date:** 2017-08-03
- **FAA docket:** Docket No. FAA-2016-9437
## Abstract

We are adopting a new airworthiness directive (AD) for all Model G-IV airplanes. This AD was prompted by a report indicating that the G-IV gust lock system allows more throttle travel than was intended and could allow the throttle to be advanced to reach take-off thrust. This AD requires modification of the gust lock system, and a revision of the maintenance or inspection program to incorporate functional tests. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/06/29/2017-13405/airworthiness-directives-gulfstream-aerospace-corporation-airplanes)
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