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inner tanks can be done to save some Trim or Center tank fuel.
If Center Tank or Trim Tank not empty:
L+R CTR PUMPS.....................................................................................................................ON
CTR TK XFR..........................................................................................................................MAN
T TANK FEED (if not empty)...............................................................................................AUTO
T TANK MODE (if not empty)............................................................................................... FWD
When Trim Tank empty:
T TANK MODE..............................................................................................................AUTO
T TANK FEED.................................................................................................................ISOL
When Center Tank empty:
CTR TK XFR................................................................................................................. AUTO
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
FUEL
A330/A340 FLEET PRO-ABN-28 P 95/98
FCOM 19 AUG 10
FUEL LOSS REDUCTION
Applicable to:
Apply this procedure only if suggested by the FUEL LEAK procedure, and if the flight crew needs to
minimize the fuel loss. It covers two types of leak:
‐ A leak from wing: a manual Trim tank transfer can be done, to symmetrically transfer the fuel to
both inner tanks, and avoid an automatic fuel transfer to only the least full inner tank, or
‐ A leak from the Trim tank: a manual Trim tank transfer to both inner tanks can be done to save
some Trim tank fuel.
If Trim Tank not empty:
T TANK FEED..................................................................................................................... AUTO
T TANK MODE...................................................................................................................... FWD
When Trim Tank empty:
T TANK MODE..............................................................................................................AUTO
T TANK FEED.................................................................................................................ISOL
FUEL IMBALANCE
Applicable to:
FOB........................................................................................................................................ CHECK
Compare the FOB + FU, with the FOB at departure.
If the difference is significant, or if the FOB + FU decreases, suspect a fuel leak.
CAUTION A fuel imbalance may indicate a fuel leak.
Do not apply this procedure, if a fuel leak is suspected.
Refer to PRO-ABN-28 FUEL LEAK.
FUEL X FEED 1+2+3+4................................................................................................................. ON
Select all X-FEED valves ON, even if already automatically opened.
On the lighter side:
(ALL) FUEL PUMPS (STBY then NORM)..............................................................................OFF
When fuel balanced:
PUMPS (NORM then STBY)....................................................................................................ON
FUEL X FEED 1+2+3+4....................................................................................................CLOSE
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
FUEL
A330/A340 FLEET PRO-ABN-28 P 96/98
FCOM 19 AUG 10
FUEL IMBALANCE
Applicable to: ,
FOB........................................................................................................................................ CHECK
Compare the FOB + FU, with the FOB at departure.
If the difference is significant, or if the FOB + FU decreases, suspect a fuel leak.
CAUTION 1. A fuel imbalance may indicate a fuel leak. Do not apply this procedure, if a fuel
leak is suspected. Refer to PRO-ABN-28 FUEL LEAK.
2. In the case of an ENG FEEDLINE BURST followed by an ENG SHUTDOWN,
if fuel of the tank associated to the affected engine is required, do not open the
WING XFEED valve and apply the procedure below that corresponds to the case
of the WING XFEED valve failed closed.
WING X FEED.............................................................................................................................. ON
If the WING X FEED valve is open:
On the lighter side:
(ALL) FUEL PUMPS (STBY then MAIN 1 and 2)............................................................OFF
Note: While pumps are OFF, disregard the corresponding FUEL WING PUMPS LO PR
ECAM caution.
When fuel balanced:
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 7(148)
