737 Flight Crew Operations Manual
Fuel -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 12.10.5
Display remains until –
• both engines not running
• center fuel tank quantity less than 363 kgs
• one center fuel tank pump switch ON
The quantity digits on the center tank fuel quantity indicator return to normal.
3 Fuel Imbalance (IMBAL) Alert
Displayed (amber) –
• main tanks differ by more than 453 kgs
• displayed below main tank with lower fuel quantity
YK981 - YQ456
• inhibited when airplane is on the ground
YW273, YW274
• displayed when airplane is on the ground or in the air
• inhibited by fuel LOW indication when both indications exist
• displayed until imbalance is reduced to 91 kgs
The fuel quantity digits on tank with lower fuel quantity turn amber.
September 15, 2016
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