Garmin GTN 625 Pilot's Manual page 550

Message
Foreword
LOCKED FLIGHT
Getting
PLAN
Started
Cannot activate
Audio &
a flight plan
Xpdr Ctrl
containing a locked
Com/Nav
waypoint.
LOSS OF
FPL
INTEGRITY (LOI)-
Verify GPS
Direct-To
position with
other navigation
Proc
equipment.
Wpt Info
MAGNETIC
NORTH
Map
APPROACH -
Verify NAV angles
Traffic
are referenced
to magnetic
Terrain
north (magnetic
variation).
Weather
MAGNETIC
VARIATION -
Nearest
Aircraft in area
Services/
with large mag var.
Music
Verify all course
Utilities
angles.
System
MARK ON
Messages
TARGET -
Waypoint creation
Symbols
has failed. MOT
requires GPS
Appendix
position.
Index
16-14
Description
The user is trying to
activate a flight plan
that contains a locked
waypoint.
Antenna may be
shaded from satellites.
The GPS module has
reported a loss of
integrity.
The NAV angle is not
set to Magnetic and a
magnetic approach is
loaded.
MagVar is flagged
as unreliable in the
MagVar database.
This normally occurs
when operating at high
latitudes that do not
support a Nav Angle of
Magnetic.
Mark on target
waypoint creation
has failed because of
missing GPS position.
GTN 625/635/650 Pilot's Guide
Action
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
message persists.
Change NAV angle setting to
Magnetic.
Verify that the geographical region
supports navigation based on
magnetic variation.
Wait for GPS satellite geometry to
improve. Ensure the aircraft has a
clear view of the sky. Reattempt
waypoint creation. Contact dealer
for service.
190-01004-03 Rev. P