Garmin G1000 NXi Pilot's Manual page 316

HAZARD AVOIDANCE
Alert Type
System Test in Progress
System Test Pass
Terrain Alerting Inhibited
No GPS position
Excessively degraded GPS signal;
or Out of database coverage area
Terrain System Test Fail; Terrain
or Obstacle database unavailable
or invalid; Invalid software
configuration; or System audio
fault
MFD Terrain or Obstacle database
unavailable or invalid, and
Terrain-SVT operating with PFD
Terrain or Obstacle databases
† 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.
TAWS-B
During power-up, TAWS-B conducts a self-test of its visual annunciations and voice alerts. An voice alert is
issued at test completion.
TAWS-B continually monitors several system-critical items such as database validity, hardware status, and
GPS status. If the terrain/obstacle database is not available, the voice alert "TAWS System Failure" is generated
along with the 'TAWS FAIL' alert annunciation.
TAWS-B requires a 3-D GPS navigation solution along with specific vertical accuracy minimums. Should
the navigation solution become degraded or if the aircraft is out of the database coverage area, the system
displays the 'TAWS N/A' annunciation, and issues the "TAWS Not Available" voice alert. When the GPS signal
integrity returns and the aircraft is within the database coverage area, the system issues the voice alert, "TAWS
Available" .
302
PFD/MFD Alert Terrain-SVT Page Center
†
Annunciation Banner Annunciation
None
NO GPS POSITION
None TERRAIN DATABASE FAILURE
Table 6-12 Terrain-SVT System Status Annunciations
Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
TERRAIN TEST
None "Terrain System Test OK"
None
"Terrain System Not Available"*
None "Terrain System Not Available"*
TERRAIN FAIL
Voice Alert
None
None
"Terrain System Failure"
None
190-02177-00 Rev. A