Copyright . The Boeing Company. See title page for details.
3.10.2 April 28, 2000
Anti-Ice, Rain -Controls and Indicators
Probe Heat Panel
YA613 - YA687, YA801 - YK104
CAPT PITOT
PITOT L ELEV
VANE L ALPHA
TEMP PROBE
PITOTF/O
R ELEV PITOT
VANE R ALPHA
PITOT AUX
YA721, YA722
CAPT PITOT
PITOT L ELEV
VANE L ALPHA
TEMP PROBE
PITOTF/O
R ELEV PITOT
VANE R ALPHA
PITOT AUX
Probe Heat Lights
Illuminated (amber) – related probe not heated.
Note: If operating on standby power, probe heat lights do not indicate system status.
PROBE HEAT Switches
ON – power is supplied to heat related system.
OFF – power off.
TAT TEST Switch YA721, YA722
Push -Electrical power applied to TEMP PROBE on the ground.
Copyright . The Boeing Company. See title page for details.
Anti-Ice, Rain -Controls and Indicators
Engine Anti–Ice Panel
COWL COWL
ANTI-ICE ANTI-ICE
COWL VALVE COWL VALVE
OPEN OPEN
COWL ANTI–ICE Lights
Illuminated (amber) – indicates an overpressure condition in duct downstream of engine cowl anti–ice valve.
COWL VALVE OPEN Lights
Illuminated (blue) –
.
bright – related cowl anti–ice valve is in transit, or, cowl anti–ice valve
position disagrees with related ENGINE ANTI–ICE switch position
.
dim – related cowl anti–ice valve is open (switch ON). Extinguished – related cowl anti–ice valve is closed (switch OFF).
ENGINE ANTI–ICE Switches
ON –
.
related engine anti–ice valve is open
.
stick shaker logic is set for icing conditions.
OFF –
.
related engine anti–ice valve is closed
.
stick shaker logic returns to normal if wing anti–ice has not been used in
flight.
Copyright . The Boeing Company. See title page for details.
3.10.4 July 28, 2000
Anti-Ice, Rain -Controls and Indicators
Thermal Anti–Ice Indication
Thermal Anti–Ice Indications
Illuminated –
.
Green – cowl anti–ice valve(s) open
.
Amber – cowl anti–ice valve is not in position indicated by related engine anti–ice switch.
Wing Anti–Ice Panel
Wing Anti–Ice VALVE OPEN Lights
Illuminated (blue) –
.
bright – related wing anti–ice control valve is in transit, or, related wing anti–ice control valve position disagrees with WING ANTI–ICE switch position
.
dim – related wing anti–ice control valve is open (switch ON). Extinguished – related wing anti–ice control valve is closed (switch OFF).
Copyright . The Boeing Company. See title page for details.
Anti-Ice, Rain -Controls and Indicators 737 Flight Crew Operations Manual
WING ANTI–ICE Switch
OFF – wing anti–ice control valves are closed.
ON (in the air) –
.
wing anti–ice control valves are open
.
stick shaker logic is set for icing conditions.
Note: Stick shaker logic remains set for icing conditions for the remainder of the flight, regardless of subsequent WING ANTI–ICE switch position.
ON (on the ground) –
.
wing anti–ice control valves open if thrust on both engines is below
takeoff warning setting and temperature inside both distribution ducts is
below thermal switch activation temperature
.
control valves close if either engine thrust is above takeoff warning
setting or thermal switch is activated in either distribution duct. Switch
remains ON
.
switch trips OFF at lift–off.
Copyright . The Boeing Company. See title page for details.
3.10.6 July 28, 2000
737 Flight Crew Operations Manual
Anti-Ice, Rain Chapter 3
System Description Section 20
Introduction
Thermal anti-icing (TAI), electrical anti-icing, and windshield wipers are the systems provided for ice and rain protection.
The anti-ice and rain systems include:
.
Flight Deck Window Heat . Engine Anti-Ice System
.
Windshield Wipers . Wing Anti-Ice System
.
Probe and Sensor Heat
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本文链接地址：737NG机组操作手册Flight Crew Operations Manual FCOM 2(74)
