Special Conditions; Garmin International, Inc., GFC-700 AFCS on the Mooney M20M and M20R With the G1000 EFIS; Protection of Systems for High Intensity Radiated Fields (HIRF)

These special conditions are issued to Garmin International, Inc., 1200 E 151st St., Olathe, KS 66062, for a Supplemental Type Certificate for the Mooney M20M and M20R. These airplanes 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 a digital autopilot, Model GFC-700, manufactured by Garmin International, 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). This system will interface to the G1000 EFIS, which is also covered by these special conditions, which 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.