OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
SYSTEM ALERT
MESSAGE
DESCRIPTION
ACTION
ADF CONTROL LOST
ADF1 CONTROL LOST
ADF2 CONTROL LOST
The FMS cannot control the identified
ADF radio (radio failure or requested
tuning does not match feedback for 10
second).
Check ADF Control Radio from another source.
Advise maintenance.
AIR DATA LOST
The FMS reports a failure of ADC input
data on both the onside and offside. A
failure is declared when at least one or
more critical labels are not being
updated or failed.
Ensure that ADC is powered.
Advise maintenance.
CHECK ANP
The FMS ANP (Actual Navigation
Performance) value exceeds the RNP
(Required Navigation Performance)
value.
Verify RNP/ANP values on PROGRESS 1/3 or
1/4 page.
Monitor FMS position; perform manual position
update if necessary (not possible in GPS Nav
mode).
Otherwise revert to an alternate means of
navigation.
CHECK SELECTED ALT
In Climb: The stabilized selected
altitude is set above an AT, or AT OR
BELOW or upper limit of a WINDOW
climb waypoint altitude constraint, and
the aircraft has reached an altitude
where the start of capturing the altitude
constraint would normally be
commanded; OR
In Cruise: At 10 nautical miles prior to a
planned Step Climb/Descent pseudo-
waypoint, the stabilized selected
altitude is not within 150 ft of the
planned Step altitude; OR
At 10 nautical miles prior the top-of-
descent anticipation point, the selected
altitude is greater than the cruise
altitude minus 150 ft; OR
In Descent: If the stabilized selected
altitude is set to an AT, or AT OR
ABOVE, or the lower limit of an
WINDOW altitude-constraint of the
active descent waypoint, where the
descent path will continue once the
waypoint is sequenced;
In Climb: Lower the stabilized selected A/P
altitude and arm as appropriate to ensure the
altitude constraint is captured without
overshoot.
In Cruise: Lower the selected altitude by at
least 150 ft (when approaching the
T/D) OR raise/lower the selected
altitude to within 150 ft of the planned
step altitude (when approaching a
step point).
In Descent: Lower the stabilized selected A/P
altitude by at least 150 feet and arm as
appropriate to ensure the descent continues
past the waypoint.
NOTE: Pending the descent path flown, the
altitude selector should be set to the E/D
altitude or to the first descent waypoint altitude
which has an altitude constraint "AT" or "AT or
ABOVE".
Page E-2
August 17, 2010
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