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OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page E-6
November 19, 2009
SYSTEM ALERT
MESSAGE
DESCRIPTION ACTION
APPLICABLE
CONFIGURA-TION
DME/DME NAV
LOST
DME-DME navigation can no
longer be used as a means of
navigation.
If FMS was in DME-DME
navigation mode, it automatically
reverts to the next available
navigation mode.
CAUTION:
In aircraft installations consisting
of dual FMS interfaced with dual
DME transceivers, the alert
message “DME/DME NAV
LOST” could be erroneously
triggered upon the loss of one of
the two DME receivers. The
problem occurs when one FMS
has lost its single DME input: the
DME/DME navigation is still
provided by the off-side FMS via
FMS cross-talk. The DME/DME
NAV LOST message should be
ignored in this case.
Verify if identified DME
transceiver operates
normally.
Use another navigation
sensor as a means of primary
navigation.
Advise maintenance.
DME interface
DME CONTROL
LOST
DME1 CONTROL
LOST
DME2 CONTROL
LOST
The FMS cannot control the
DME which is paired with the
NAV radio.
The FMS detects a failure with
the DME channel used for
manual tuning via the NAV radio.
Control DME from another
source.
DME receiver is no longer
operational, use other
navigation aids.
Advise maintenance.
DME interface
DVS NAV LOST
The FMS detects a total loss of
DVS input data on the onside
and offside FMSs.
DVS sensor can no longer be
used for navigation.
Ensure that DVS is powered.
Verify if the DVS operates
normally.
Advise maintenance.
Doppler interface
EFIS INPUT LOST
The FMS detects a total loss of
EFIS input data on the onside
and offside FMSs.
Ensure that EFIS is powered.
Verify if the EFIS(s)
operate(s) normally.
Advise maintenance.
EFIS interface
EGI POS DIFF
The FMS detects a position
difference between pure GPS
solution and INS/GPS solution
greater than maximum accuracy
of the two sensors
or
The FMS detects a degraded
operation mode of the EGI.
Use another navigation
sensor as a means of primary
navigation.
Advise maintenance.
EGI Interface
and
Nav cross-check configured
END OF ROUTE
Passing the last waypoint in the
route. FMS steering becomes
invalid.
Select RTE LEGS page to
enter additional waypoints to
resume FMS steering.
All configurations
ENTER
POS/DATE/TIME
FMS battery failure detected
invalidating the RTC date/time
and current position.
Enter date, time and position.
Advise maintenance. Master
Caution is active.
All configurations
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