Garmin SOCATA TBM850, Pilot'S Manual

Page: 432 / 684

Garmin G1000 Pilot’s Guide for the Socata TBM 850
190-00709-04 Rev. A 418
HAZARD AVOIDANCE
SYSTEM STATUS
During power-up, Terrain-SVS conducts a self-test of its aural and visual annunciations. An aural alert is
issued at test completion.
Alert Type
PFD/MFD* Alert
Annunciation
Aural Message
System Test in Progress None
System Test Pass None “Terrain System Test OK”
Terrain System Test Fail “Terrain System Failure”
* Annunciation is displayed on the MFD when terrain display is enabled.
Table 6-17 Terrain-SVS System Test Status Annunciations
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 aural message “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 aural message
“Terrain
System Not Available” is generated. When the GPS signal is re-established and the aircraft is within the
database coverage area, the aural message “ Terrain System Available ” is generated.
Alert Cause
PFD/MFD*
Alert
Annunciation
Terrain-SVS Page Center Banner
Annunciation
Aural Message
MFD Terrain or Obstacle
database unavailable
or invalid. Terrain-SVS
operating with PFD Terrain or
Obstacle databases
None
TERRAIN DATABASE FAILURE
None
Terrain or Obstacle database
unavailable or invalid, invalid
software configuration, audio
fault
TERRAIN FAIL
“Terrain System Failure”
No GPS position
NO GPS POSITION
“Terrain System Not Available”
“Terrain System Available” when
GPS position returns
Excessively degraded GPS
signal
None “Terrain System Not Available”
“Terrain System Available” when
sufficient GPS signal is received
Out of database coverage
area
None “Terrain System Not Available”
“Terrain System Available” when
aircraft re-enters coverage area
* Annunciation is displayed on the MFD when terrain display is enabled.
Table 6-18 Terrain-SVS Status Annunciations