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• the flaps extend to the commanded position.
25 – the slats extend to the fully extended position. The flaps extend to 25.
30 – the flaps extend to 30.
Magenta – the slats or flaps are in transit to the commanded position.
Green – the slats and flaps are in the commanded position.
The line and number change color.
Flap Load Relief Indication
1 Flap Position (white)
2 Flap Lever Position (line and number)
FLAPS
20
EICAS DISPLAY
1
2
RELIEF
LOAD
EICAS DISPLAY
1
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.10 Boeing Proprietary
Displayed (white) – flap load relief is retracting the flaps, or inhibiting extension,
as required to prevent air load damage due to excessive airspeed.
Expanded Flap and Slat Position Indication
If any flap/slat is non–normal or if control is in the secondary mode, slat and flap
positions are shown independently. Each wing is also shown separately.
Indicator motion is continuous between flap detents.
The slat indication fills up (forward) for extension.
The flap indication fills down (aft) for extension.
Indication colors of outline and fill are:
• white when operating in secondary mode
• amber when the respective FLAPS DRIVE or SLATS DRIVE EICAS
message is displayed.
Loss of position information is shown as a white outline with no fill and no flap
lever position indication.
Magenta – the slats or flaps are in transit to the commanded position.
Green – the slats or flaps are in the commanded position.
The numbers are shown next to the flap position indicator only.
Slat and flap extension is limited to slats midrange and flaps 20.
Displayed automatically when the alternate control mode is armed.
Slats – displays the position of the slats.
Flaps – displays the position of the flaps.
Flap position index marks – reference flaps 5 and 20.
1 Flap LOAD RELIEF Indication
1 Expanded Flap and Slat Position Indications
2 Flap Lever Position (line and number)
3 Alternate Flap and Slat Position Indications (white)
P A L F
S 15 P
A
L
F
S
5 5
20 20
EICAS DISPLAY
1
2
3
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.11
Loss of position information is indicated as a white outline with no fill and no
position index marks or numbers.
Flight Control Synoptic Displays
The flight control synoptic is displayed by pushing the SYS switch on the display
select panel, then selecting the FCTL menu button. Display select panel operation
is described in Chapter 10, Flight Instruments, Displays.
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.12 Boeing Proprietary
Normal Flight Control Synoptic
NU
ND
B
A
T
S
R ELEV
RUDDER TRIM
2.4
R FLPRN R AIL
8.50
L ELEV
FLT CTRL MODE
NORMAL
RUDDER
L AIL L FLPRN
SPOILERS
L
Stabilizer Spoiler Flaperon Aileron
Rudder Primary Flight Elevator
Control System
Rudder Trim Position
and Direction
L – Left.
R – Right.
Position Position Position Position
Position Position
Mode
MULTIFUNCTION
DISPLAY
ND – Nose Down
NU – Nose Up
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.13
Non–Normal Flight Control Synoptic
L ELEV
L C1 C2
HYDRAULICS FLT CTRL MODE ACES
LCR SECONDARY R
R AIL
NU
ND
B
A
T
S
R ELEV
RUDDER TRIM
0.0
R FLPRN
RUDDER
L AIL L FLPRN
SPOILERS
ELECTRICAL
L2 R2
Unknown Unknown
Hydraulic System
Failure Indications
(amber)
Flight Control Mode
SECONDARY or
DIRECT Indication
(amber)
Failed Control Surface
Actuator Control
Electronic Failure
Indications (amber)
Aileron Position Spoiler Condition
or Trim Function
(amber)
MULTIFUNCTION
DISPLAY
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.14 Boeing Proprietary
Intentionally
Blank
787 Flight Crew Operations Manual
Flight Controls Chapter 9
System Description Section 20
Boeing Proprietary 9.20.1
9.20 Flight Controls-System Description Introduction
The primary flight control system uses conventional control wheel, column, and
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