Honeywell SPZ-8000 Maintenance Manual page 234

MAINTENANCE
Honeywell M!%!htv
7. B. (6) F1ight Level Change (FLCH) Button - This pushbutton is used to
select and deselect the flight
level change mode. Upon the
engagement of the FLCH
mode, the SPEED window shall become active,
displaying the speed value as commanded by the
FMS. Manual speed
selection can then be accomplished as described in paragraph
7.B. (13).
Actuation of the FLCH
mode shall cancel all other vertical flight
director modes with the exception ofVNAV.
(7) Heading Select (HDG
SEL) Button
- This pushbutton is used to select
and deselect the heading
select mode. The desired heading reference
is selected with the HDG SEL knob. This mode is a direct capture
only mode and will result in exiting any other captured lateral
mode.
(8) Bank Limit Select (BANK) Button - This pushbutton allows manual
selection of the bank angle limit in the HDG SEL mode. Alternate
activation of the BANK button causes alternate selection of a 28-
degree high bank limit or 20-degree low bank limit. At power-up,
high BANK is selected.
Automatic toggle to low bank status shall occur
when climbing
through 29,500 feet. Automatic toggle to high bank status shall
occur when descending through 28,500 feet. Manual selection of high
bank status shall be allowed above 29,500 feet, and manual selection
of low bank status shall be allowed below 28,500 feet. When in low
bank status the button annunciates 1/2.
(9) Back Course (BC) Button - This pushbutton is used to select and
deselect the back course function and display for ILS back course
approaches.
(10) Approach (APR) Button - This
deselect the approach mode.
arm ILS or MLS vertical path
(11) Vertical
deselect
the VERT
aircraft
can then
(12) Altitude
Speed (VS) Button -
pushbutton is used to select and
The approach mode must be selected to
captures.
This pushbutton is used to select and
the vertical speed mode. -Upon engagement of the VS mode,
SPEED window shall become active, displaying the current
vertical speed value. The desired vertical speed value
be selected with the V/S knob.
Hold (ALT HLD) Button - This pushbutton is used to select
and deselect the altitude hold mode. The aircraft shall maintain
the altitude that the aircraft is at upon engagement of the ALT
mode. This mode is a direct capture mode
only and will result
in
canceling any other captured vertical mode.
22-14-00
Page
198.52
Aug 15/91
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