# Special Conditions: Gulfstream Model GIV-X Airplane; Interaction of Systems and Structures
> **Rule** · Final special conditions; request for comments. · Published 2004-04-07 · Effective 2004-03-29 · 69 FR 18246
## Document
- **Document number:** 04-7877
- **Category:** other
- **Type:** Rule
- **Action:** Final special conditions; request for comments.
- **Citation:** 69 FR 18246
- **Publication date:** 2004-04-07
- **Effective date:** 2004-03-29
- **FAA docket:** Docket No. NM275
## Abstract

These special conditions are issued for the Gulfstream Model GIV-X airplane. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. These design features are associated with new or modified flight control systems, including the yaw damper and hard-over prevention system, that affect the structural performance of the airplane. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these systems and their effect on structural performance. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the applicable airworthiness standards.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/04/07/04-7877/special-conditions-gulfstream-model-giv-x-airplane-interaction-of-systems-and-structures)
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