Honeywell SPZ-8000 Pilot's Manual page 148

Message
AP FAIL/YD AVAIL
NAV MISMATCH
[LEFT NAV]
NAV MISMATCH
[RIGHT NAV]
PUSHBUTTON
ACTIVE
Advisory Caution Messages (Steady)
A28--1146--055
REV 2
SPZ--8000 Digital Integrated Flight Control System
Timed--out
Reset
(5 sec)
Light On
No
No
No
(as long
condition
exists)
Table 6--8
Automatic Flight Control System (AFCS)
Comments
Yes Indicates that
only the AP
failed, but not
yaw damper
(YD).
Yes When a NAV
MISMATCH
occurs, the FGC
automatically
selects the most
reasonable NAV
signal. The pilot
must
acknowledge the
message. The
the selection
cannot be
changed.
No Indicates a stuck
button on either
as the advisory
display or the
display controller.
6-15