Garmin SOCATA TBM850, Pilot'S Manual

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Garmin G1000 Pilot’s Guide for the Socata TBM 850
190-00709-04 Rev. A 432
HAZARD AVOIDANCE
SYSTEM STATUS
During G1000 power-up, TAWS-B conducts a self-test of its aural and visual annunciations. The system test
can also be manually initiated. An aural alert is issued 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
Aural Message
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 6-22 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 6-154 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 aural message “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 annunciation
‘TAWS N/A’ is generated in the annunciation window and on the TAWS-B Page. The aural message
“TAWS Not
Available” is generated. When sufficient GPS signal is returns and the aircraft is within the database coverage
area, the aural message “TAWS Available” is generated.