OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
STATUS ADVISORY
MESSAGE
DESCRIPTION ACTION
CLB PATH
UNACHIEVABLE
When the flight plan is in "MOD" state:
1. The FMS predicts that the predicted flight
path angle or the climb rate exceeds the
envelope limit.
2. The computed climb path violates at
least one altitude-constrained climb
waypoint.
Review the climb vertical profile on the
MCDU; Identify the offender flight path
angle, climb rate or the violated altitude
constraint.
Adjust the climb profile to resolve non-
compliances.
CLB IN DES NOT
ALLOWED
In the flight plan being modified, the FMS
detects a climb segment in the descent
profile during the vertical profile generation.
NOTE: The only possible way for having a
climb segment in the descent profile is to
manually enter an altitude constraint at a
down-path waypoint that is higher than the
altitude constraint of a waypoint before.
Review the flight plan and remove any
climb segment falling into the descent
profile.
CRZ ALT ABOVE MAX
ALT
When the flight plan is being modified : and
The pilot-entered Cruise Atitude is greater
than the FMS-computed Maximum Altitude;
OR
The stabilized selected altitude is raised
above the FMS-computed Maximum Altitude
and forces a change to the FMS CRZ ALT;
OR
An engine-out situation occurs and the
current aircraft altitude is above the FMS-
computed Stabilizing Altitude.
Enter on the MCDU a cruise altitude below
the maximum altitude displayed on the
cruise page;
OR
Lower the pre-selected altitude below the
maximum altitude displayed on the cruise
page;
OR
The crew must evaluate the engine out
event; if it is judged as an engine-out non-
critical situation, lower the pre-selected
altitude to the stabilized altitude.
If the engine out event is critical, do not
low the pre-selected altitude and monitor
the minimum rate of descent drift down.
CRZ ALTITUDE
LOWERED
When the cruise altitude must be lowered to
generate a climb profile to the cruise altitude.
Verify the lateral and/or vertical flight plan
and correct accordingly.
If no changes are made, the message will
be removed when leveling of in cruise.
DES PATH
UNACHIEVABLE
While the flight plan is in "MOD" state and
the FMS calculates a flight path angle of a
descent segment or a vertical speed to
maintain that segment at the predicted
ground speed that exceeds the limits stored
in the performance database, or if an
altitude-constrained descent waypoint is
located within 50 nm of T/D.
Review the flight plan descent profile for
altitude/speed restriction and waypoint
altitude/speed constraints to reckon the
performance envelope limits.
DIRECT HOLD ENTRY
Holding pattern entry procedure to be used
on crossing of holding fix.
Acknowledge the holding pattern entry.
DIRECT TO FIX
Upon flying a Direct-To with intercept course,
the predicted intercept point is so close to
the leg's termination waypoint such that the
intercept path cannot be calculated.
NOTE: The FMS then calculates a path
direct to the waypoint.
Review the intercept course entered.
DME NAV
DESELECTED
DME Sensor manually de-selected by the
pilot.
Ensure DME navigation sensor should be
deselected.
Page E-14
August 17, 2010
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