Cockpit Reference Guide

190-00763-02 Rev. A
Garmin G1000 Pilot’s Guide for the Piper PA-46 Meridian
85
FLIGHT INSTRUMENTS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
2.4 ABNORMAL OPERATIONS
ABNORMAL GPS CONDITIONS
TheannunciationslistedinTable2-4canappearontheHSIwhenabnormalGPSconditionsoccur;seeFigure
2-42forexamples.RefertotheFlightManagementSectionformoreinformationonDeadReckoning(DR)
Mode.
Annunciation Location Description
LOI
Lower left of
aircraft symbol
Loss of Integrity Monitoring–GPS integrity is insufficient for the current
phase of flight
INTEG OK
Lower left of
aircraft symbol
Integrity OK–GPS integrity has been restored to within normal limits
(annunciation displayed for 5 seconds)
DR
Upper right of
aircraft symbol
Dead Reckoning–System is using projected position rather than GPS position
to compute navigation data and sequence active flight plan waypoints
Table 2-4 Abnormal GPS Conditions Annunciated on HSI
Figure 2-42 Example of HSI Annunciations
DR Mode causes the following items on the PFD to be shown in yellow:
•CDI,whenGPSistheselectednavigationsource.(YellowCDIisremovedafter20minutes.)
•CurrentTrackBug
•WindData
•DistancesintheBearingInformationwindows
•GPSbearingpointers
It is important to note that estimated navigation data supplied by the G1000 in DR Mode may become
increasingly unreliable and must not be used as a sole means of navigation. See the Flight Management section
for more information about DR Mode