Garmin G1000H Bell 407GX Pilot's Guide - Page 90

FLIGHT INSTRUMENTS 2.4 ABNORMAL OPERATIONS ABNORMAL GPS CONDITIONS The annunciations listed in Table 2-3 can appear on the HSI when abnormal GPS conditions occur. Refer to the Flight Management Section for more information on Dead Reckoning Mode. Annunciation LOI INTEG OK DR Location Description Lower left of Loss of Integrity Monitoring-GPS integrity is insufficient for the current aircraft symbol phase of flight Lower left of Integrity OK-GPS integrity has been restored to within normal limits aircraft symbol (annunciation displayed for 5 seconds) Upper right of Dead Reckoning-System is using projected position rather than GPS position aircraft symbol to compute navigation data and sequence active flight plan waypoints Table 2-4 Abnormal GPS Conditions Annunciated on HSI Figure 2-51 Example HSI Annunciations In Dead Reckoning Mode, the CDI is removed (when GPS is the selected navigation source), and the following items on the PFD are then shown in yellow: • Current Track Bug • Wind Data • Distances in the Bearing Information windows • GPS bearing pointers These items should be verified when operating in Dead Reckoning Mode and they become increasingly inaccurate over time. 78 Garmin G1000H™ Pilot's Guide for the Bell 407GX 190-01255-00 Rev A