Special Conditions: Cessna Model 650 Airplanes; High-Intensity Radiated Fields (HIRF)

These special conditions are issued for Cessna Model 650 airplanes modified by Elliott Aviation Technical Product Development, Inc. These modified airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The modification incorporates the installation of electronic flight display systems manufactured by Universal Avionics Systems Corporation. The electronic flight display systems perform critical functions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of these systems from the effects of high-intensity radiated fields (HIRF). 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 existing airworthiness standards.