Garmin G950 Pilot's Manual page 344

HAZARD AVOIDANCE
SYSTEM STATUS
During power-up, Terrain-SVS conducts a self-test of its visual annunciations and voice alerts. A voice alert
is issued at test completion.
Terrain-SVS 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 "Terrain System Failure" is
generated along with the 'TER FAIL' alert annunciation.
Terrain-SVS 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 annunciation
'TER N/A' is generated in the annunciation window and on the Terrain-SVS Page. The voice alert "Terrain
System Not Available" is generated. When sufficient GPS signal is returns and the aircraft is within the
database coverage area, the voice alert "Terrain System Available" is generated.
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-SVS operating with PFD
Terrain or Obstacle databases
† Annunciation is shown on Terrain-SVS 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.
332
PFD/MFD Alert Terrain-SVS Page Center
†
Annunciation Banner Annunciation
TERRAIN TEST
None
NO GPS POSITION
TERRAIN FAIL
None TERRAIN DATABASE FAILURE
Table 6-12 Terrain-SVS System Status Annunciations
Garmin G950 Pilot's Guide for the Pilatus PC-6
None "Terrain System Test OK"
None
"Terrain System Not Available"*
None "Terrain System Not Available"*
"Terrain System Failure"
Voice Alert
None
None
None
190-00870-02 Rev. A