82046-PG-B1
ST3400H PILOT’S GUIDE
Page 6-8
6.7
TAWS Inhibit - FLTA
FLTA alerts can be inhibited by pressing TAWS INH in the Pilot’s Menu
(or if installed, holding the external mounted MUTE pushbutton for 2
seconds). This feature may be used for:
Abnormal failure of GPS/FMS resulting in erroneous data. A
conventional (flagged) GPS/FMS failure will automatically fail
alerts and the terrain display.
To stop alerts occurring because of unusual VFR mission
requirements.
A perceived nuisance alert, or an alert expected but not received,
should be brought to the attention of Sandel Avionics for analysis.
Be aware that the TAWS INH function cancels all alerts - FLTA and
GPWS. Altitude Callouts remains active, and terrain is removed from the
screen.
6.8
Simultaneous TAWS and TFC Alerts
If a TAWS alert occurs Traffic will be removed from the display.
If a traffic alert is also present during the terrain alert, a yellow or red
“TFC” annunciator appears next to the TFC button. If it is desired to
simultaneously view the traffic in this situation, pressing the TFC button
will restore the TFC targets.
After the terrain alert ceases, the traffic display will always be restored
automatically and the prior terrain display mode will be restored after a 5
second delay.
Figure 6-11 Display During TAWS Alerts
