737 MAX Flight Crew Operations Manual
Anti-Ice, Rain -
System Description
MN-FLT-OH-201
3.20.3
Flight Deck Window Heat Schematic
Windshield Wipers
The rain removal system for the forward windows consists of windshield wipers
and a permanent rain repellent coating on the windows.
CAUTION: Windshield scratching will occur if the windshield wipers are
operated on a dry windshield.
ON
L
WINDOW HEAT
OVHT
SIDE
R
FWD
ON
OFF
OFF
ON
ON
FWD
SIDE
PWR TEST
ON
OVERHEAT
L3
L2
L1
R1
R2
R3
TEMPERATURE
CONTROLLER
CONDITION:
WINDOW HEAT ON
R SIDE OVERHEATED
SHIELD
AIR
SHIELD
AIR
FROM
AIR CONDITIONING
SYSTEM
WIND
WIND
TEMPERATURE
CONTROLLER
March 1, 2021