S 865-195
 (1)  
Put these center wing tank override/jettison pump switches on the fuel management control module (P5 pilots' overhead panel) to the ON position:

 (a)  
CTR L

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 (b)  CTR R
 S 715-064
 (2)  Make sure the amber PRESS indication light in each switch comes on, and then goes off.
 S 715-264
 (3)  Make sure the white ON indication symbol in the pump switch shows.
 S 715-197
 (4)  Monitor the fuel synoptic. (a) Make sure the pump box symbols for the center wing tank override/jettison pumps change color in this sequence: 1) White (pump off) 2) Amber (pump on - low pressure) (momentarily) 3) Green (pump on - pressure)
 S 715-196
 (5)  Make sure these EICAS messages do not show on the top or bottom EICAS displays: (a) FUEL OVRD CTR L (STATUS or ADVISORY) (b) FUEL OVRD CTR R (STATUS or ADVISORY)
 S 865-062
 (6)  Put these override/jettison pump switches for the No. 2 and No. 3 main tanks on the fuel management control panel (P5 pilots' overhead panel) to the ON position: (a) OVRD 2 FWD (b) OVRD 2 AFT (c) 3 OVRD FWD (d) 3 OVRD AFT
 S 715-063
 (7)  Make sure the white ON indication symbol in each pump switch shows.
 S 715-147
 (8)  Monitor the fuel synoptic. (a) Make sure the pump box symbols for the override/jettison pumps for the No. 2 and No. 3 main tanks change color in this sequence: 1) White (pump off)

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 2) Cyan (pump armed or standby)
 S 715-155
 (9)  
Make sure these EICAS messages do not show on the top or bottom EICAS displays:

 (a)  
FUEL OVRD 2 AFT (STATUS or ADVISORY)

 (b)  
FUEL OVRD 2 FWD (STATUS or ADVISORY)

 (c)  
FUEL OVRD 3 AFT (STATUS or ADVISORY)

 (d)  
FUEL OVRD 3 FWD (STATUS or ADVISORY)

 S 715-199
 (10)
 Put the override/jettison pump switches, CTR L and CTR R, to the off position (white ON indication symbol in each switch does not show).

 S 715-200

 (11)
 Monitor the fuel synoptic.

 (a)  
Make sure the pump box symbols for the override/jettison pumps in the center wing tank change color in this sequence: 1) Green (pump on - pressure) 2) Amber (pump on - low pressure) (does not always show) 3) White (pump off)

 S 715-198
 (12)
 Monitor the fuel synoptic.

 (a)  
Make sure the pump box symbols for the override/jettison pumps for the No. 2 and No. 3 main tanks change color in this sequence: 1) Cyan (armed or standby) 2) Amber (pump on - low pressure) (does not always show) 3) Green (pump on - pressure)

 (13)
 Put the FUEL JETTISON control selector switch to position A.

 S 715-173
 NOTE: With the jettison control selector switch in the A or B
____ position, the control of the override/jettison pumps for the No. 2 and No. 3 main tanks goes from the fuel system management cards (FSMC) A and B, to the fuel jettison control card (FJCC) A or B. The overide/jettison pumps for the No. 2 and No. 3 main tanks will not be commanded on by the FJCC A or B until jettison mode is active.
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747-400 MAINTENANCE MANUAL
 S 715-115
 (14)
 Monitor the fuel synoptic.
　
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