190-00709-05 Rev. D
Garmin G1000 Pilot’s Guide for the Socata TBM 850/900
461
HAZARD AVOIDANCE
SYSTEM STATUS
During G1000 power-up, TAWS-B conducts a system test of its alerting capabilities. The system test can also
be manually initiated. A voice alert occurs at test completion. TAWS-B System Testing is disabled when ground
speed exceeds 30 knots.
Alert Type
PFD/MFD* Alert
Annunciation
TAWS-B Page
Center Banner
Annunciation
Voice Alert
System Test in Progress
TAWS TEST
None
System Test Pass
None
None
“TAWS System Test OK”
TAWS System Test Fail
TAWS FAIL
“TAWS System Failure”
* Annunciation is displayed on the MFD when terrain display is enabled.
Table 6-23 TAWS-B System Test Status Annunciations
Manually testing the TAWS-B System:
1)
Select the TAWS-B Page.
2)
Press the
MENU
Key.
3)
Select 'Test TAWS System' and press the
ENT
Key to confirm the selection.
Figure 6-157 TAWS-B Page Menu
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”
occurs 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 annunciation
‘TAWS N/A’ is generated in the annunciation window and on the TAWS-B Page, and the voice
“TAWS Not
Available”
occurs. When sufficient GPS signal is returns and the aircraft is within the database coverage area,
the voice alert
“TAWS Available”
is generated.