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failed.
L1 If either aft transfer valve failed open:
T TANK FEED.................................................................................................................ISOL
IF T TK FUEL UNUSABLE:
T TK UNUSBL PROC........................................................................................................ APPLY
L12
STATUS
WHEN SPD > 270 KT AND NOT IN CLIMB:
T TANK MODE................................................................ FWD
T TANK FEED............................................................... OPEN
Displayed if trim tank pump is failed or not installed.
L12
WHEN SPD > 270 KT AND NOT IN CLIMB:
T TANK MODE................................................................ FWD
T TANK FEED............................................................... OPEN
Displayed if the trim tank pump is failed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
FUEL
A330/A340 FLEET PRO-ABN-28 P 45/98
FCOM 19 AUG 10
FUEL T TANK XFR FAULT
Applicable to:
T TANK MODE...........................................................................................................................FWD
L2 Displayed in all other cases.
L1 T TANK FEED...........................................................................................................................OPEN
L2 Fuel consumption is increased by approximately 1 %.
Either line (a) or (b) will be displayed.
Displayed if the trim tank isolation valve is failed closed or if the trim tank low level sensor is failed.
Note: 1. If the trim tank pump is failed or not installed, the above procedure is preceded by:
WHEN SPD > 270 kt AND NOT IN CLIMB:
2. If forward transfer is initiated by T TANK FEED sw, do not completely empty the trim
tank (below around 200 kg). This avoids drainage of the trim line and so ensures APU
supply.
L1 If either aft transfer valve is failed open:
FUEL IMBALANCE....................................................................................................... MONITOR
IF TRIM TK QUANTITY NOT DECREASING:
T TANK MODE..............................................................................................................AUTO
T TANK FEED.................................................................................................................ISOL
T TK FUEL UNUSABLE
L2 These steps prevent uncommanded aft transfer via a failed aft transfer valve.
L1 WHEN T TANK EMPTY:
T TANK FEED..................................................................................................................... AUTO
L2 Displayed if the trim tank isolation valve is failed closed or if the trim tank low level sensor is
failed.
L1 T TANK MODE.................................................................................................................... AUTO
L2 Displayed in all other cases.
L1 If either aft transfer valve failed open:
T TANK FEED.................................................................................................................ISOL
IF T TK FUEL UNUSABLE:
T TK UNUSBL PROC........................................................................................................ APPLY
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
FUEL
A330/A340 FLEET PRO-ABN-28 P 46/98
FCOM 19 AUG 10
FUEL T TANK XFR FAULT (Cont'd)
L12
WHEN SPD > 270 KT AND NOT IN CLIMB:
T TANK MODE................................................................ FWD
T TANK FEED............................................................... OPEN
Displayed if the trim tank pump is failed.
FUEL TRIM TANK LINE FAULT
(DAMAGE ON THE TRIM LINE)
Applicable to: ,
L2 This caution is triggered in case of damage on the trim line.
L1 TRIM LINE ISOLATED
APU MASTER SW........................................................................................................................OFF
STATUS
INOP SYS
FUEL AFT XFR
APU (When TTK isol)
FUEL TRIM TANK LINE FAULT
(DAMAGE ON THE TRIM LINE)
Applicable to: MSN ,
,
L2 This caution is triggered in case of damage on the trim line.
L1 TRIM LINE ISOLATED
APU MASTER SW........................................................................................................................OFF
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
FUEL
A330/A340 FLEET PRO-ABN-28 P 47/98
FCOM 19 AUG 10
FUEL TRIM TANK LINE FAULT (Cont'd)
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 7(131)
