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OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page E-19
November 19, 2009
MAINTENANCE ALERT MESSAGES
Maintenance Alert messages are messages that indicate a particular CMA-9000 FMS failure condition:
•
Displayed in amber on the MAINT MESSAGES page.
•
Never displayed on the scratchpad.
•
Always associated with a specific system alert message.
•
Unless otherwise noted, the CMA-9000 Master Caution is active (e.g. FMS is not functional) for all the
Maintenance Alert messages.
•
The associated message alert FMS DEGRADED suggests that the cause of the problem may be
determined and that the FMS may be used in a degraded navigation mode. However: Do not use the FMS
for navigation if the cause of the problem cannot be determined.
MAINTENANCE
ALERT MESSAGE
DESCRIPTION ACTION
ASSOCIATED
SYSTEM
ALERT MESSAGE
BAD SDI
STRAPPING
The FMS detects that both SDI
pins are open.
In flight: Discontinue use of
the given by pulling FMS
circuit breaker.
On ground: Advise
maintenance.
FMS FAILED
BOOT CHECKSUM
FAILED
Boot software failure.
SYSTEM cannot be
reprogrammed with new
operational software.
Do not use the FMS for
navigation.
Master Caution is inactive.
Advise maintenance.
None
H/W A429 IP#
FAILED
ARINC 429 receiver failure
detected.
Where # is 1 to 24.
SYSTEM DEGRADED displayed
on MESSAGE RECALL page.
Do not use the FMS to
communicate with the
equipment configured at the
failed input port.
Master Caution is inactive.
Advise maintenance.
FMS DEGRADED
H/W A429 TX#
FAILED
ARINC 429 transmitter failure
detected.
Where # is 1 to 8.
SYSTEM DEGRADED displayed
on MESSAGE RECALL page.
Do not use the FMS to
communicate with the
equipment(s) configured at
the failed output port.
Master Caution is inactive.
Advise maintenance.
FMS DEGRADED
H/W CPU CLKMUL
FAILED
K6 CPU frequency is not 220
MHz.
SYSTEM FAILED displayed on
MESSAGE RECALL page.
Do not use the FMS for
navigation.
Advise maintenance.
FMS FAILED
H/W CPU FAILED
CPU failure detected.
SYSTEM FAILED displayed on
MESSAGE RECALL page.
Do not use the FMS for
navigation.
Advise maintenance.
FMS FAILED
H/W FLASH
FAILED
The SYSTEM detects a failure
during the internal flash test.
SYSTEM FAILED displayed on
MESSAGE RECALL page.
Do not use the FMS for
navigation.
Advise maintenance.
FMS FAILED
H/W FPU FAILED
FPU failure detected.
SYSTEM
FAILED displayed on MESSAGE
RECALL page.
Do not use the FMS for
navigation.
Advise maintenance.
FMS FAILED
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