737 Flight Crew Operations Manual
Automatic Flight -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
4.10.16 D6-27370-866-EGP
• when approaching a selected radio course in CWS R with VOR/LOC or
approach mode armed, VOR/LOC engages when course is intercepted
YK981 - YQ456
• if pitch is manually overridden while in ALT HOLD and control force is
released within 250 feet of selected altitude, A/P pitch mode engages in
ALT ACQ and returns to selected altitude in ALT HOLD mode.
YK981 - YQ456
Note: During F/D only operation, while pitch or roll commands are more than 1/2
scale from center, pushing a CMD A or B switch engages the A/P in CWS
for pitch and/or roll and the related F/D bar(s) retract.
YW273, YW274
Note: During F/D only operation, while a pitch command is more than 1/2 scale
from center, pushing a CMD A or B switch engages the A/P in CWS for
pitch and the related F/D bar(s) retract.
2 Control Wheel Steering Engage (CWS ENGAGE) Switch (A or B):
Push –
• engages A/P
• engages pitch and roll modes in CWS. Other pitch and roll modes not
enabled
• displays CWS P and CWS R in A/P status display
• CMD not displayed in A/P status display
• F/Ds, if ON, display guidance commands and FD annunciates in A/P
status display. A/P does not follow commands while in CWS
• A/P pitch and roll controlled by pilot with control wheel pressure
• when control pressure released, A/P holds existing attitude. If aileron
pressure released with 6 degrees or less bank, the A/P rolls wings level
and holds existing heading. Heading hold feature inhibited:
• below 1500 feet RA with gear down
• after LOC capture in APP mode
• after VOR capture with TAS 250 knots or less.
3 Autopilot Disengage (DISENGAGE) Bar
Pull down –
• exposes yellow background
• disengages both A/Ps
• prevents A/P engagement.
Lift up –
• conceals yellow background
• enables A/P engagement.
September 15, 2016
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