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Rudder Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.16
Secondary and Direct Mode Yaw Control . . . . . . . . . . . . . . . . . 9.20.16
Spoilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.16
Spoiler Speedbrake Operation . . . . . . . . . . . . . . . . . . . . . . . . 9.20.17
Flaps and Slats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.17
Flap and Slat Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.18
Flap and Slat Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.18
Flap/Slat Load Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.19
Autoslats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.20
Flap and Slat Asymmetry Detection . . . . . . . . . . . . . . . . . . . 9.20.20
Uncommanded Flap or Slat Motion . . . . . . . . . . . . . . . . . . . 9.20.20
Flap Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.20.21
EICAS Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.30.1
Flight Control System EICAS Messages . . . . . . . . . . . . . . . . . . . 9.30.1
787 Flight Crew Operations Manual
Flight Controls Chapter 9
Controls and Indicators Section 10
Boeing Proprietary 9.10.1
9.10 Flight Controls-Controls and Indicators
Primary Flight Computers Controls
DISC –
• disconnects the primary flight computers (PFCs) from the flight control
system
• puts the flight control system in the direct mode
• AUTO can be reselected to attempt restoration of secondary or normal
mode operation.
AUTO –
• the flight control system operates in the normal mode
• system faults automatically cause the system to switch to the secondary or
direct modes.
Illuminated (amber) – the primary flight computers are disconnected
automatically or manually and the system is in the direct mode.
1 PRIMARY FLIGHT COMPUTERS Disconnect Switch
2 PRIMARY FLIGHT COMPUTERS Disconnect (DISC) Light
DISC
COMPUTERS
PRIMARY FLIGHT
DISC
AUTO
OVERHEAD PANEL
2
1
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.2 Boeing Proprietary
Pitch and Stabilizer Trim Systems
Control Wheel and Column
Spring–loaded to neutral.
Push (both switches) –
• in the normal mode in flight, changes the trim reference airspeed
• in the normal mode on the ground, moves the stabilizer
• in the secondary and direct modes, moves the stabilizer.
Rotate – deflects the ailerons, flaperons, and spoilers in the desired direction.
Push/pull – commands the airplane to pitch in the desired direction:
• in the normal mode, deflects the elevator and horizontal stabilizer
• in the secondary and direct modes, deflects the elevator.
Does not move with pitch trim operation.
1 Pitch Trim Switches
2 Control Wheel
3 Control Column
1
2
3
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.3
Stabilizer Trim System
Displayed (magenta).
Indicates stabilizer position in units of trim.
Displayed (white) – normal indication when trim is not set within the green band
Displayed (green) – when trim is set within the green band
Displayed (amber) – when stabilizer is inoperative
The green band indicates the allowable takeoff trim range, based on gross weight,
takeoff thrust, and CG information from the FMC. (TBD).
If the stabilizer signal is not present or is invalid, the green band and the pointer
are not displayed.
1 FMC Stabilizer (STAB) Takeoff Setting
2 Stabilizer (STAB) Position Indicator
3 Takeoff Trim Green Band
CONTROL STAND
10.25
ND
NU
S
T
B
A
10.25
EICAS DISPLAY
P U
PARKING
BRAKE
NOSE DN
PITCH TRIM
ALTN
NOSE UP
CUTOUT
L2 R2
PULL
STAB
NORM
10.25
ND
NU
S
T
B
A
5
1
2 3
4
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.4 Boeing Proprietary
Spring–loaded to neutral.
Push (both switches) –
• in the normal mode, changes trim reference airspeed and moves the
stabilizer directly
• in the secondary and direct modes, moves the stabilizer directly.
NORM –
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787机组操作手册Flight Crew Operations Manual 2(65)
