OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
SYNCHRONIZED OPERATIONS
NOTE: To operate correctly in the synchronized mode the FMSs must contain the same databases.
Furthermore the active database must be the same in all FMSs.
In the synchronized mode of operation, the following items are automatically synchronized between all FMSs:
• FMS settings (e.g. UTC/Date entry, TRUE/MAG selection, etc).
• Flight-Plan related information (e.g. flight plan entries or changes)
• Navigation-related information (e.g. system position, RNP, etc.)
• Guidance-related information (e.g. Missed approach request, Hold exit request, etc.)
• Alert messages and their fault sources
• Radio-related information (e.g. self-test commands, tuning data, etc.)
• Etc.
Only one FMS can change an active flight plan at any time. If one FMS is already in MOD status (route
modifications in progress), any attempt to change the flight plan of another FMS will bring in view the “ !CDU
ENTRY CONFLICT” message in the scratchpad.
In synchronized mode, both FMS will use the best system sensor for navigation and guidance computations
(unless deselected on the DESELECT 1/1 page). Therefore, FMS present position, track and ground speed are
synchronized.
NOTE: In synchronized mode of operation, the GPS integrity annunciator will illuminate only if the GPS
integrity is lost on all
GPS sensors.
When synchronized, an FMS will change to independent mode if its Phase of Flight is different from the
other FMS(s) for more than 30 seconds.
Page 3-20
August 17, 2010
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