737 MAX Flight Crew Operations Manual
Hydraulics -
System Description
MN-FLT-OH-201
13.20.3
1B401, 1B402, 1B801 - 1B824
A and B Hydraulic Systems
Components powered by hydraulic systems A and B are:
System A
System B
• ailerons
• rudder
• elevator and elevator feel
• flight spoilers (2,4,9,11)
• ground spoilers (1,6,7,12)
• alternate brakes
• No. 1 thrust reverser
• autopilot A
• normal nose wheel steering
• landing gear
• landing gear transfer valve
1B401, 1B402, 1B801 - 1B824
• tail skid
• power transfer unit (PTU).
• ailerons
• rudder
• elevator and elevator feel
• flight spoilers (3,5,8,10)
• leading edge flaps and slats
• trailing edge flaps
• normal brakes
• No. 2 thrust reverser
• autopilot B
• alternate nose wheel steering
• landing gear transfer unit
• yaw damper
• power transfer unit (PTU).
NORMAL
BRAKES
TRAILING
EDGE FLAPS
ALTERNATE NOSE
WHEEL STEERING
LANDING GEAR
TRANSFER UNIT
LANDING
GEAR
ELEVATORS
ELEV FEEL COMP
AILERONS
RUDDER
TAIL SKID
NOSE WHEEL
STEERING
ALTERNATE
BRAKES
No. 1 THRUST
REVERSER
POWER
TRANSFER
UNIT
M
AIR
PRESSURE
STBY
SYSTEM
M
M
PTU CONTROL
VALVE
AIR
PRESSURE
SYSTEM
A
M
SYSTEM
B
GROUND
SPOILERS
FLIGHT
SPOILERS
No. 2 THRUST
REVERSER
LEADING EDGE
FLAPS & SLATS
1, 6, 7, 12
2, 4, 9, 11
AUTOPILOT
FLIGHT
SPOILERS
3, 5, 8, 10
TWO-POSITION TAIL SKID
YAW
DAMPER
October 26, 2021