SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
6-7
Automatic Flight Control System (AFCS)
D Operational Messages (white)
— Static air temperature (SAT)/total air temperature (TAT)/true
airspeed (TAS) display
— Flight director lateral and vertical arm modes
— Flight director lateral and vertical active modes
— AFCS status messages.
D W arning/Caution Messages -- W arning/caution messages are
displayed on the second line in amber.
— Disengage messages
— Primary caution messages
— Advisory caution messages
— Sensor failure messages
— Invalid operation messages.
D W arning/Caution Message Cancellation -- In most cases, the
RESET button is lit at the same time the message is displayed.
When the RESET button lights, it indicates that
an acknowledgement is required. Messages are acknowledged by
pushing the RESET button, or in some cases, by other means. This
acknowledgement clears the message and switches off the RESET
button light.
Some messages (primary caution messages) require a corrective
action. In this case, the RESET button does not light, and the
message is displayed until the problem is corrected.
Various other messages are timed--out. These messages are
automatically cleared after 5 seconds. The RESET lamp does not
light for timed--out messages.
D AFCS Message Data Invalid -- If AFCS message data received by
the advisory display is invalid (i.e., ASCB failure), the advisory
display shows a dashed amber line. This line clears when a valid
AFCS message data is displayed.
If at that time, the advisory display receives a direct disengage
command, the dashed amber line is overwritten by the flashing
disengage message. Once the disengage message has been
cleared by pushing the RESET button, the dashed amber line is
displayed.
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