737 MAX Flight Crew Operations Manual
Fuel -
Controls and Indicators
MN-FLT-OH-201
12.10.11
10
Fueling Valve Switches
OPEN – energizes fueling valve in related tank.
CLOSED – de–energizes fueling valve in related tank.
11
FUEL Quantity (QTY) Indicators
Indicates total usable fuel tank quantity in related tank.
1B401, 1B402, 1B801 - 1B824
12
Fuel Quantity Selectors
Rotate – sets total fuel quantity desired in related tank.
Nitrogen Generation System (NGS)
1
OPERATIONAL Light (green)
NGS is fully operational.
2
DEGRADED Light (blue)
NGS is operational, but is operating in a degraded condition.
3
INOPERATIVE Light (amber)
NGS is inoperative.
Note:
No lights illuminated also indicates NGS is inoperative.
RIGHT MAIN WHEEL WELL
DEGRADED
OPERATIONAL
Nitrogen Generation System
INOPERATIVE
Serviceable
Temporarily Serviceable
Unserviceable
2
1
3
March 1, 2021