Garmin GTN 725 Cockpit Reference Manual page 89

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Message
KNOB STUCK -
The Volume knob has
been in pressed position
Volume knob
for at least 30 seconds.
is stuck in the
This knob press will
pressed position.
now be ignored.
LOCKED FLIGHT
The user is trying to
activate a flight plan
PLAN
that contains a locked
Cannot activate
waypoint.
a flight plan
containing a locked
waypoint.
LOSS OF
Antenna may be shaded
from satellites. The GPS
INTEGRITY (LOI)-
module has reported a
Verify GPS
loss of integrity.
position with
other navigation
equipment.
MAGNETIC
The NAV angle is not
set to Magnetic and a
NORTH
magnetic approach is
APPROACH -
loaded.
Verify NAV angles
are referenced
to magnetic
north (magnetic
variation).
MAGNETIC
MagVar is flagged
as unreliable in the
VARIATION -
MagVar database.
Aircraft in area
This normally occurs
with large mag var.
when operating at high
Verify all course
latitudes that do not
angles.
support a NAV Angle of
Magnetic.
190-01007-04 Rev. K
Description
Verify the volume knob is not
pressed. Contact dealer for service
if this message persists.
Unlock the flight plan by modifying
stored flight plans as necessary
to include waypoints, procedures,
and airways that are in the current
navigation database.
Make sure the aircraft is clear of
hangars, buildings, trees, etc. Use a
different GPS receiver or a
non-GPS based source of
navigation. Contact dealer for
service if this message persists.
Change NAV angle setting to
Magnetic.
Verify that the geographical region
supports navigation based on
magnetic variation.
GTN 725/750 Cockpit Reference Guide
Action
79