Garmin G1000 NXi Pilot’s Guide for the Cessna Nav III 190-02177-00 Rev. ASYSTEMOVERVIEWFLIGHTINSTRUMENTSEISAUDIO PANEL& CNSFLIGHTMANAGEMENTHAZARDAVOIDANCEAFCSADDITIONALFEATURESAPPENDICESINDEX302HAZARD AVOIDANCEAlert Type PFD/MFD† AlertAnnunciationTerrain-SVT Page CenterBanner Annunciation Voice AlertSystem Test in Progress TERRAIN TEST NoneSystem Test Pass None None “Terrain System Test OK”Terrain Alerting Inhibited None NoneNo GPS position NO GPS POSITION “Terrain System Not Available”*Excessively degraded GPS signal;or Out of database coverage area None “Terrain System Not Available”*Terrain System Test Fail; Terrainor Obstacle database unavailableor invalid; Invalid softwareconfiguration; or System audiofaultTERRAIN FAIL “Terrain System Failure”MFD Terrain or Obstacle databaseunavailable or invalid, andTerrain-SVT operating with PFDTerrain or Obstacle databasesNone TERRAIN DATABASE FAILURE None† Annunciation is shown on Terrain-SVT Page and the Navigation Map Page when Terrain is enabled.* “Terrain System Available” will be heard when sufficient GPS signal is received, or Terrain database coverage area re-entered.Table 6-12 Terrain-SVT System Status AnnunciationsTAWS-BDuring power-up, TAWS-B conducts a self-test of its visual annunciations and voice alerts. An voice alert isissued at test completion.TAWS-B continually monitors several system-critical items such as database validity, hardware status, andGPS status. If the terrain/obstacle database is not available, the voice alert “TAWS System Failure” is generatedalong with the ‘TAWS FAIL’ alert annunciation.TAWS-B requires a 3-D GPS navigation solution along with specific vertical accuracy minimums. Shouldthe navigation solution become degraded or if the aircraft is out of the database coverage area, the systemdisplays the ‘TAWS N/A’ annunciation, and issues the “TAWS Not Available” voice alert. When the GPS signalintegrity returns and the aircraft is within the database coverage area, the system issues the voice alert, “TAWSAvailable” .
