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to the lower DU. However, whichever pilot chooses first to display the ND on the
lower DU owns the ND when the other pilot chooses to display an ND on the other
half of the lower DU. This results in a full-display ND on the lower DU which the
first pilot controls.
Display Select Panel
The display select panels (one for each pilot) on the glareshield provide control of
the MFDs for the on-side inboard DU. Each DU has a left and right window. The
currently selected MFD window (left or right) is indicated by the illuminated
annunciator light above the corresponding display switch (L or R).
787 Flight Crew Operations Manual
Flight Instruments, Displays -
System Description
Boeing Proprietary 10.20.3
After a display unit is selected, the appropriate display is selected (SYS, CDU,
INFO, CHKL, COMM, or ND). The ENG switch toggles the display of secondary
engine formation on the EICAS display. The EICAS transfer switch toggles the
EICAS display between the inboard half of the Captain and First Officer inboard
DUs.
Each pilot also has a display select panel next to the lower display unit. These
DSPs provide each pilot control of their half of the lower DU. This allows the
selection of the same MFDs as on the upper DUs. However, these DSPs do not
include the ENG, CANC/RCL, or EICAS transfer switches.
Display select panel control is also available through the backup EFIS/DSP
display on the SYS page. This capability is available at all times. The DSP
hardware controls remain active when the EFIS backup is enabled if the DSP is
still functional. Any available MFD window may be selected.
Display Brightness Control
The MASTER BRIGHTNESS control provides simultaneous brightness
adjustment for all displays and panel lighting. Also, each display unit has an
individual control with limited range control when master brightness is on, and
full range control when master brightness is off.
Two remote light sensors, located left and right on the top of the glareshield,
measure brightness in the forward field of view and adjust the overall display
brightness as required. Individual sensors on the front of each display unit also
affect display brightness. The CDUs, mode control panel displays, standby flight
instruments, and aisle stand panel displays are also controlled by the automatic
display brightness control system.
PFD/MFD Source Selector
The PFD/MFD selector is used to switch displays if there is undetected display
unit failure.
When the selector is in the inboard position (INBD DU), the outboard display unit
is blanked and the inboard display unit shows the cropped PFD and EICAS if
EICAS was previously displayed on this side. Otherwise, whichever display that
was shown in place of EICAS before the failure is shown.
When the selector is in the outboard position (OUTBD DU), the inboard display
unit is blanked. The outboard half of the outboard display unit shows the cropped
PFD. The inboard half displays EICAS if EICAS was previously shown on that
side of the flight deck. Otherwise, whichever display that was shown in place of
EICAS before the failure is shown.
787 Flight Crew Operations Manual
Flight Instruments, Displays -
System Description
10.20.4 Boeing Proprietary
Instrument Display Source Selection
The display system automatically reconfigures to compensate for most faults. The
Air Data/Attitude (AIR DATA/ATT) Source Selector is provided for the pilots to
use if certain faults are not corrected automatically.
The AIR DATA/ATT source selector controls the source of airspeed, altitude and
attitude information for the associated PFD and HUD. They have no effect on the
autoflight or navigation system.
If there is an undetected source failure, the non-normal (ALTN) position provides
the capability for manual selection of PFD and HUD sources.
Display Selection and Control Examples
The following examples show display selections.
787 Flight Crew Operations Manual
Flight Instruments, Displays -
System Description
Boeing Proprietary 10.20.5
Default Display Configuration
HUD HUD
1
2
The PFD/MD DISPLAY 3
selectors are set to NORM.
The inboard display units display
CANL/RCL
EICAS
RADIO BARO
MINS
IN HPA
BARO
FPV MTRS
RANGE
ND
WXR
MAP MENU
CHKL
INFO
COMM ND
SYS CDU
L R
MFD
WXR TFC TERR ENG
CTR
RST STD
WXR TFC TERR
RADIO BARO
MINS
IN HPA
BARO
FPV MTRS
RANGE
CTR
ND
WXR
MAP MENU
CHKL
INFO
COMM ND
SYS CDU
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787机组操作手册Flight Crew Operations Manual 2(101)
