Taws Failure Alert; Taws System Status - Garmin GTN 625 Pilot's Manual

10.3.8.8
Foreword
TAWS requires a 3-D GPS position solution along with specific vertical
Getting
accuracy minimums. Should the position solution become degraded or if the
Started
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
Xpdr Ctrl
"TAWS Not Available" is generated. When the GPS signal is re-established and
Com/Nav
the aircraft is within the database coverage area, the aural message "TAWS
Available" is generated (when the aircraft is airborne).
FPL
10.3.8.9
Direct-To
TAWS continually monitors several system-critical items such as database
validity, hardware status, and GPS status. If the terrain/obstacle database is not
Proc
available, the aural message "TAWS System Failure" is generated along with a
"TAWS FAIL" annunciation.
Wpt Info
10.3.9
Map
During power-up, TAWS conducts a self-test of its aural and visual
annunciations. The system test can also be manually initiated. An aural alert is
Traffic
issued at test completion. TAWS System Testing is disabled when ground speed
exceeds 30 knots.
Terrain
Weather
Nearest TAWS Available
TAWS System Test in Progress
Music
TAWS System Test Pass
Utilities
TAWS N/A
TAWS Alerting is Disabled
System
TAWS System Test Fail
Messages
Symbols
Appendix
Index
10-18
TAWS Not Available Alert

TAWS Failure Alert

TAWS System Status

Alert Type
Table 10-5 TAWS-B System Test Status Annunciations
Garmin GTN 625/635/650 Pilot's Guide
Alert
Annunciation
None
None "TAWS System Test OK"
"TAWS System Failure"
Aural Message
"TAWS Available"
None
TAWS Not Available
None
190-01004-03 Rev. B