737 MAX Flight Crew Operations Manual
Fuel -
System Description
12.20.4
MN-FLT-OH-201
The manual defueling valve, located outboard of engine No. 2, interconnects the
engine feed system and the fueling station. It is opened for defueling and tank to
tank transfer operations.
A shutoff system is used during fueling to automatically close the fueling valve in
each fuel tank when the tank is full.
Fuel Tank Location and Capacities (Usable Fuel)
Main tanks No. 1 and No. 2 are integral with the wing structure. The center tank
lies between the wing roots within the fuselage area and extends out into the wing
structure.
These figures represent approximate amounts of usable fuel. The appropriate
weight and balance control and loading manual gives exact figures for all
conditions.
TANK
LITERS
KILOGRAMS*
NO. 1
4,819
3,869
NO. 2
4,819
3,869
CENTER
16,179
12,990
TOTAL
25,817
20,728
* Usable fuel at level attitude, fuel density = 0.8029 kilograms per liter
March 1, 2021
