Garmin G500 Pilots Guide - Page 255

Foreword Sec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Features 6 Annunciations and Alerts 6.1 Alerts Alert Message AHRS1 GPS AHRS1/2 GPS AHRS1/2 GPS Description Action • AHRS1 not receiving any GPS information. • Verify navigator is on and has a GPS signal and is not in self-test mode. • Heading and attitude data, if displayed, is still valid. • Check AFMS for limitations. • Contact your Garmin dealer for service. • Loss of ADC will cause altitude failure. • AHRS1 operating exclusively in no-GPS mode. • Displayed heading and attitude data is still valid. • Check AFMS for limitations. • Contact your Garmin dealer for service. • Additional loss of airspeed data from ADC will cause loss of heading and attitude data. • Verify navigator is receiving GPS signal. • AHRS1 not receiving backup GPS information. • Verify second GPS unit operation. • Contact your Garmin dealer for service. Sec 5 Additional Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 190-01102-02 Rev. B Garmin G500 Pilot's Guide 6-1