Garmin GTN 725 Cockpit Reference Manual page 98

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Message
TRANSPONDER
The transponder has
1 OR 2 - detected an internal
fault and transponder
Transponder has
functionality may be
failed.
unavailable.
TRANSPONDER
The transponder is
operating in a mode
1 OR 2 -
intended for ground
Transponder is in
testing.
ground test mode.
TRANSPONDER The transponder is
1 OR 2 - reporting that its
internal temperature
Transponder
has exceeded upper
overtemp.
operating limits.
TRANSPONDER The transponder is
1 OR 2 - reporting that its
internal temperature
Transponder
has exceeded lower
undertemp.
operating limits.
TRUE NORTH
A procedure is loaded
APPROACH - that is referenced
to true north and
Verify NAV Angles
the active leg has a
are referenced to
published true north
True North (T).
reference.
USER WAYPOINT
IMPORT - User
waypoints
were imported
successfully.
88
Description
All user waypoints
were imported
successfully.
GTN 725/750 Cockpit Reference Guide
Action
Contact dealer for service.
Cycle the power to the transponder.
Decrease temperature and increase
airflow near the transponder, if
possible. Monitor aircraft electrical
indications. Contact dealer for
service if this message persists.
Contact dealer for service if this
message persists.
Verify the NAV Angle is set to True
North.
No action is necessary; message is
informational only.
190-01007-04 Rev. K