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Windshield Wipers/Washers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.20.4
Probe Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.20.4
EICAS Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.30.1
Anti-Ice, Rain System EICAS Messages . . . . . . . . . . . . . . . . . . . 3.30.1
787 Flight Crew Operations Manual
3.TOC.0.2 Boeing Proprietary
Anti-Ice, Rain -
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787 Flight Crew Operations Manual
Anti-Ice, Rain Chapter 3
Controls and Indicators Section 10
Boeing Proprietary 3.10.1
3.10 Anti-Ice, Rain-Controls and Indicators
Anti-Ice Panel
OFF – wing ice protection system is not powered.
Note: To enter the OFF position, switch must be pulled during rotation from
AUTO to OFF.
AUTO – in flight, wing ice protection system is powered on or off automatically
by the ice protection system.
ON – in flight, wing ice protection system is powered on and operates without
input from automatic ice detection system (with TAT less than 10 degrees C).
OFF – the engine anti–ice valve is commanded closed.
AUTO – in flight, the engine anti–ice valve is opened or closed automatically by
the ice detection system.
ON – the engine anti-ice valve is commanded open.
Note: If the ENGINE ANTI-ICE selector is in AUTO and the anti-ice valve is
commanded open, or if the selector is in ON, then:
• approach idle is selected by the EEC.
1 WING ANTI–ICE Selector
2 ENGINE ANTI–ICE Selectors
OFF ON
AUTO
WING
OFF ON
ANTI-ICE
AUTO
L
OFF ON
AUTO
ENGINE R
OVERHEAD PANEL
1 2
PRELIMINARY
787 Flight Crew Operations Manual
Anti-Ice, Rain -
Controls and Indicators
3.10.2 Boeing Proprietary
Window Heat and Wiper Panels
Window Heat Panel
ON – window heat is applied to the selected windows.
INOP (inoperative) illuminated (amber) –
• the switch is OFF
• an overheat is detected, or
• a system fault has occurred.
OFF (ON not visible) – backup window heat system is off.
ON – backup window heat is commanded on for the forward left and forward
right windows.
1 WINDOW HEAT Switches
2 BACKUP WINDOW HEAT Switches
INOP
ON
WINDOW HEAT
INOP
ON
SIDE FWD
L
INOP
ON
INOP
ON
FWD SIDE
R
BACKUP
L FWD R FWD
PRIMARY
ON ON
OVERHEAD PANEL
1
2
PRELIMINARY
787 Flight Crew Operations Manual
Anti-Ice, Rain -
Controls and Indicators
Boeing Proprietary 3.10.3
Wiper/Washer Panels
Wiper Panels
OFF – the wiper is stowed vertically.
INT (intermittent) – the wiper operates intermittently.
LOW – the wiper operates at low speed.
HIGH – the wiper operates at high speed.
Push (momentary action) – fluid is sprayed on windshield until switch is released.
1 WIPER Selectors
2 WASHER Switches
INT
OFF
LOW
HIGH
R WIPER
R WASHER
L WIPER
OFF
HIGH
LOW
INT
L WASHER
OVERHEAD PANEL
1
2
PRELIMINARY
787 Flight Crew Operations Manual
Anti-Ice, Rain -
Controls and Indicators
3.10.4 Boeing Proprietary
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787 Flight Crew Operations Manual
Anti-Ice, Rain Chapter 3
System Description Section 20
Boeing Proprietary 3.20.1
3.20 Anti-Ice, Rain-System Description Introduction
The anti–ice and rain systems include:
Automatic Ice Detection System
The automatic ice detection system senses the existence of icing conditions. The
system consists of two icing condition detectors that measure liquid water content
and use TAT and other air data information to determine if icing conditions exist.
Both detectors are heated electrically after engine start. The system provides
signals to control the engine, wing, and pack inlet anti–ice systems.
Automatic ice detection is inhibited on the ground below 60 knots.
Engine Anti–Ice System
The engine anti–ice system uses engine bleed air to provide engine cowl inlet ice
protection. Engine anti–ice can be operated in flight or on the ground. The engine
anti–ice indication EAI is displayed above the EICAS N1 indication when an
engine anti–ice valve is open. The left and right engines have identical,
independent anti–ice systems. This allows the remaining system to operate if one
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