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RAIM NOT AVAILABLE
APR MODE INHIBITED
PREDICT RAIM ON STA 5 - This message appears
when integrity monitoring (RAIM) is predicted to not be
available at either the FAF or the MAP. The KLN 90B
will not allow the unit to go into the approach active
mode until conditions improve. Turn to the STA 5
(Status 5) page to perform a RAIM prediction. The STA
5 page will give an indication of how long it will be until
RAIM is available so that the approach can be flown
using the KLN 90B (see section 6.1.9 for how to perform
a RAIM prediction).
RAIM POSITION ERROR
CROSS CHECK POSITION - This message means that
the unit has detected a problem with one of the satellites
and the position can not be assured to be within IFR
limits for the particular mode of flight. Cross check the
position of the aircraft with other means of navigation
every 15 minutes to verify that the position is still
accurate.
RAIM NOT AVAILABLE
CROSS CHECK POSITION - This message appears
when there are not enough received GPS satellite
signals to compute integrity (RAIM). Cross check the
position of the aircraft with other means of navigation
every 15 minutes to verify that the position is still
accurate.
RCVR HARDWARE ERROR:_____- (Receiver
Hardware Error) This message appears when the
KLN 90B fails a specific internal test for the GPS
receiver. The blank will contain a numerical value which
may provide assistance to maintenance personnel.
RECYCLE POWER TO USE
CORRECT DATA BASE DATA - This message
appears when the date entered on the Self-Test page is
before the data base effective date and the date entered
later on the SET 2 page is after the data base effective
date, or vice versa. Turn the KLN 90B off and back on
so that the correct data base data is utilized.
REDUNDANT WPTS IN FPL
EDIT ENROUTE WPTS
AS NECESSARY - This message appears after the
pilot inserts an approach or SID/STAR procedure in the
flight plan and the KLN 90B determines that some way-
points that were in the flight plan are no longer needed.
Examine the active flight plan and remove those way-
points that occur both in the enroute and the approach
or SID/STAR sections of the flight plan.
RS-232 DATA ERROR - This message appears when
an error is detected in the received RS-232 data such
as from a fuel management or air data system.
Rev 1
B-3
NO RCVR DATA - (No Receiver Data) This message
appears when the KLN 90B fails a specific internal test
for the GPS receiver. This failure will prevent the unit
from providing any navigation capability.
NO RS-232 DATA - This message appears when no
input is received on the RS-232 input (such as from a
fuel management or air data system).
OBS WPT > 200NM (OBS Waypoint Greater Than 200
NM) This message appears when the KLN 90B is in the
OBS mode and the distance to the active waypoint is
more than 200 nautical miles. The system will perform
normally; however, at this distance the D-Bar will be
extremely sensitive to changes in selected course.
OTHER WAYPOINTS DELETED - This message
appears when the message “WAYPOINT _____
DELETED” would be effective for more than ten way-
points.
POSITION DIFFERS FROM
LAST POSITION BY > 2NM - (Position Differs From
Last Position By Greater Than 2 NM) This message
appears when the GPS sensor first reaches the NAV
mode if the new position differs from the position when
power was turned off by more than two nautical miles.
POSITION OF
WPT HAS
CHANGED - (Position of Waypoint Has Changed) This
message appears when either the latitude or the longi-
tude of a waypoint used in a flight plan or the active
waypoint has changed by more than .33 minutes as a
result of updating the database. This message is dis-
played on the left side of the screen while the waypoint
page corresponding to the waypoint which changed is
displayed on the right side of the screen.
POSITIONS OF OTHER
WAYPOINTS HAVE CHANGED - This message
appears when the above message “POSITION OF WPT
HAS CHANGED” would be effective for more than ten
waypoints.
PRESS ALT TO SET BARO - This message appears
when the approach mode is armed. Press the ALT but-
ton to update the baro informantion for proper integrity
monitoring.
PRESS GPS APR FOR NAV - This message appears
after the NAV flag has been set due to a RAIM problem
while the unit is in the approach mode. By pressing the
GPS APR button, the unit will be able to restore
navigation information so that you can conduct a missed
approach based on navigation information provided by
the KLN 90B.