737 MAX Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Controls and Indicators
1.30.18
MN-FLT-OH-201
2
Inflation Lever
1B401, 1B402, 1B801 - 1J594
Squeeze –
• inflates mask harness
• flow indicator shows a colored cross momentarily as harness inflates.
• enables the mask microphone when the left oxygen mask panel door is
opened
• disables the boom microphone.
Water System Controls
1
Water Quantity Indicator
Indicates quantity of water in reservoir.
2
Water System Service Panel
3
Fill Fitting
Used to fill tank.
4
Fill and Overflow Valve Handle
Open - enables filling or gravity draining water tank.
Closed - normal position.
POTABLE WATER
F
3/4
1/2
1/4
E
AFT ATTENDANT
PANEL
BELOW AFT ENTRY
DOOR
1
4
3
2
5
6
March 1, 2021