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16-7190-01004-03 Rev. B
Garmin GTN 625/635/650 Pilot’s Guide
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Music
Utilities
System
Messages
Symbols
Appendix
Index
Message Description Action
DATA LOST -
Pilot stored data
was lost. Recheck
settings.
User settings such as
map detail level, nav
range ring on/off, traffic
overlay on/off, and alert
settings have been lost.
Recheck settings.
DATA SOURCE -
Pressure altitude
source inoperative
or connection to
GTN lost.
The GTN is configured
to receive pressure
altitude but is not
receiving it from any
source.
Leg types requiring an altitude
source will no longer automatically
sequence. Contact dealer for
service.
DATA SOURCE -
Heading source
inoperative or
connection to GTN
lost.
The GTN is configured
to receive heading
information but is not
receiving it from any
source.
Heading up map displays will not
be available. Contact dealer for
service.
DEMO MODE -
Demo mode is
active. Do not use
for navigation.
Demo mode is in
operation.
Do not use for navigation. Power
cycle the GTN to exit demo mode.
FPL WAYPOINT
LOCKED -
Stored flight plan
waypoint is not in
current navigation
database.
A stored flight plan
waypoint is no longer in
the current navigation
database.
Verify stored cataloged flight plans
and procedures. Modify stored
flight plans as necessary to include
waypoints that are in the current
navigation database.
FPL WPT MOVED -
Stored flight plan
waypoint has
changed location.
A stored flight plan
waypoint has moved
by more than 0.33 arc
minutes from where
previously positioned.
Verify stored cataloged flight plans
and procedures. Modify stored
flight plans as necessary to include
waypoints that are in the current
navigation database.
GAD 42 -
GAD 42
configuration
needs service.
GAD 42 indicates a
configuration error.
Verify all input/output data from/
to the GAD 42 Interface Adapter.
Contact dealer for service.