Special Conditions: Raytheon Aircraft Company Model 4000; High Intensity Radiated Fields (HIRF)

These special conditions are issued for the Raytheon Aircraft Company Model 4000 airplane. This airplane will utilize new avionics/ electronics and electrical systems that will perform critical functions. The applicable 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 provided by the existing airworthiness standards.