737 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 9.10.15
Flight Control Surface Position Indicator
1 MFD System (SYS) Switch
Push – SYS
• displays flight control surface position indications on lower DU; or the
inboard DU if the MAIN PANEL DUs switch is placed to the INBD
MFD position.
• second push removes indications from the respective DU.
2 Flight Spoilers (FLT SPLR) (white)
Indicates related (left/right) flight spoilers position:
• top mark depicts flight spoilers fully deployed
• bottom mark depicts the spoilers down.
• #4 and #9 spoiler positions are displayed.
3 Aileron (AIL) (white)
Indicates related (left/right) aileron position:
• top mark depicts maximum up position
• center mark depicts neutral position
• bottom mark depicts maximum down position.
SPLR
FLT
SPLR
FLT
AIL AILELEV
RUDDER
LOWER DISPLAY UNIT
2
1
CENTER FORWARD PANEL
3
4
5
March 31, 2016
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