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HAZARD AVOIDANCE
TAWS 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 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 Page. The aural message "TAWS Not
Available" is generated. When the GPS signal is re-established and the aircraft is within the database coverage
area, the aural message "TAWS Available" is generated.
No GPS position
Excessively degraded GPS signal
GPS signal re-established
338
PFD/MFD Alert
Alert Type
Annunciation
Table 6-12 TAWS Status Annunciations
Garmin G1000 Pilot's Guide for the Diamond DA40/40F
Aural Message
"TAWS Not Available"
None
"TAWS Available"
190-00592-06 Rev. A
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