7.2.19 GPS/FMS 2
Select ST3400 to Maintenance Page 10: GPS/FMS 2
#2 GPS receiver
locked on with valid
#2 GPS
POSITION
#2 GPS Lat and Long value
displayed should match position on
Turn off #2GPS
#2 GPS
#2 GPS position value Lat and Long
Check GPS Altitude if interfaced to ST3400
#2 GPS receiver
locked on with valid
#2 GPS
ALTITUDE
#1 GPS Altitude should match
altitude displayed on GPS receiver.
NOTE: Press “VALUE´softkey and then UP/DOWN softkeys to access to
additional parameters and GPS Altitude.
7.2.20 TRAFFIC
Check traffic if interfaced to ST3400. Perform checkout per Traffic manufacturers
installation manual.
Put Traffic device in
TRAFFIC Traffic test pattern should display on
7.2.21 Activate the TAWS Inhibit
Verify this inhibit annunciates on-screen TAWS inhibited when selected and does
not annunciate on-screen TAWS inhibited when deselected.
Pass / Fail:
Remarks: ______________________________________________________
7.2.22 Power up the GPS/FMS
But do not initialize, do not accept/acknowledge Lat/Lon position, or enter and
activate a flight plan. Verify the ST3400 flags the terrain display (GPS/FMS not
active and GPS/FMS data output is not valid).
Pass / Fail:
Remarks: ______________________________________________________
7-28 ST3400 INSTALLATION MANUAL 82002-IM-L