Garmin G2000 Pilot's Manual page 424

Hazard avoidance
Inh ibiting Terrain SVT alerting while an alert is occurring:
Tou ch the Inhibit Terrain Button on the Terrain SVT pop-up window.
If Terrain SVT alerts are inhibited when the Final Approach Fix is the active waypoint in a GPS SBAS
approach, the system may show a 'LOW ALT' annunciation on the PFD next to the Altimeter if the current
aircraft altitude is at least 164 feet below the prescribed altitude at the Final Approach Fix. See the Flight
Instruments Section for details.
SySTEM STATUS
During power-up, Terrain SVT conducts a system test of its aural and visual annunciations. The system
issues an aural alert when the test is finished.
Terrain SVT continually monitors several system-critical items such as database validity, hardware status,
and GPS status. If the terrain/obstacle database is not available, the system generates the aural message
"Terrain System Failure" along with the 'TER FAIL' alert annunciation.
Terrain SVT 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
generates the aural message "Terrain System Not Available" along with the visual 'TER N/A' annunciation.
When sufficient GPS signal is returns and the aircraft is within the terrain/obstacle database coverage area, the
system generates the aural message "Terrain System Available".
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
* "Terrain System Available" will be heard when sufficient GPS signal is received, or Terrain database coverage area re-
entered.
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PFD/Terrain
Terrain SVT Display Center Banner
SVT Display
Annunciation
Annunciation
None
None
Table 6-15 Terrain SVT System Status Annunciations
Garmin G2000 Pilot's Guide for the Cessna T240
None "Terrain System Test OK"
None
"Terrain System Not Available"*
None "Terrain System Not Available"*
"Terrain System Failure"
Aural Message
None
None
None
190-01263-01 Rev. A