Special Conditions: West Pacific Air LLC; Raytheon Beech Model B-36TC; Protection of Electronic Flight Instrument Systems From the Effects of High Intensity Radiated Fields (HIRF)

These special conditions are issued to West Pacific Air LLC, 6427 E. Rutter Road, Spokane, WA 99212, for a Supplemental Type Certificate for the Raytheon Beech Model B-36TC airplane. This airplane will have novel and unusual design features when compared to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of electronic flight instrument system (EFIS) displays Model ICDS-10 manufactured by SAGEM Avionics, Inc. for which the applicable regulations do not contain adequate or appropriate airworthiness 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 the airworthiness standards applicable to these airplanes.