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Figure 13---30---4 Sheet 2
Flight Crew Operating Manual MASTER
CSP A-
013
FUEL SYSTEM Fuel Management Vol. 1 13-
30-
8
REV 56, Jan 31/03
C. System Circuit Breakers
SYSTEM SUB-
SYSTEM CB NAME BUS BAR CB PANEL CB LOCATION NOTES
XFER/APU XFER SOV N9
APU/TransferAPU/Transfer XFER/APU FUEL PUMP N10
Fuel System Fuel Pump XFER/APU CONT DC BAT 1 N11
XFER/APU APU ECU N12
Fuel ControlFuel Control XFLOW SOV M8
GRAV XFLOW DC ESS 4 B9
Flight Crew Operating Manual MASTER
CSP A-
013
FUEL SYSTEM Vol. 1 13-
40-
1
Fuel Distribution REV 56, Jan 31/03
1. FUEL DISTRIBUTION
Fuelis distributedto eachengine from arespective side collector tankwhichis an integral part ofthe centerwingtank. Two scavengeejectors, locatedatthelowestpart of each wing tank, supplies fuelto each collector tanktokeepitin afull condition. The collectortankis designedto maintain engine fuelfeedunderall normalandtransientflight maneuvering. A main ejector, within each collector tank, supplies fueltothe respective sideengine. The main andscavengeejectors are poweredbypressurizedfueltappedfromthemotive flow line ofthe respective engine fuelpump.
For engine start, aboostpump connectedto each collectortank, is selectedONfromthe fuelcontrolpanel. Theboostpumps supplyfueltotheir respective engines. The control panelis used to controland monitorboostpumpoperation.
The fueloutputpressure fromthemain ejectoris monitoredby apressure switchand when theoutputpressure is sufficientto supplytheengines, theboostpumps are automatically turnedoff. The boostpumpswill remaininstandby mode withtheengines running, asa back upto the main ejectors in theeventof afailure. Eachboostpumpis capable of feedingbothengines.
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