(a) If the 28VDC is available at pin A of the supply cable connector:
 - replace the ACTUATOR-JET PUMP 2 CONTROL VALVE, CTR TK (12QL).
 1 Do the test given in Para 3.A.
_

 (b) If the 28VDC is not available at pin A of the supply cable connector:
 1 Check/replace the RELAY-AUTO CTL No. 2 CTR TK (8QL).
_

 2 Do the test given in Para 3.A.
_

 3 If the fault continues:
_

 - check/replace the P/BSW-FUEL/CTR TK/R XFR (6QL).
 4 Do the test given in Para 3.A.
_

 5 If the fault continues:
_

 - check/replace the C/B-FUEL/CTR TK/L & R XFR/CTL & IND (2QL).
 6 If the fault continues do a wiring check (Ref. ASM 28-26/01)
_
 on:

 - the aircraft wiring between the pin A, of the actuator supply cable connector and the terminal B3, of the relay (8QL).

 - the aircraft wiring between the terminal B2, of the relay (8QL) and the terminal B1, of the P/BSW (6QL)

 - aircraft wiring between the terminal B3, of the P/BSW (6QL) and the C/B (2QL).

 7 Repair/replace all the unserviceable wiring and connectors.
_

 8 Do the test given in Para 3.A.
_

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞28-26-00∞∞∞∞∞∞∞∞∞∞Page 215
 May 01/04 CES

 TASK 28-26-00-810-808

 Fuel, Main Transfer System - Left Wing Tank Overflow
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
 1. Possible Causes
_______________
R - CLACK VALVE (214QM)
R - CLACK VALVE (216QM)
R - SDAC-1 (1WV1)
R - SDAC-2 (1WV2)

 - Transfer Control Valve 1 (Left) does not close

 - Main Transfer System Auto Control Failure

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  28-12-00-810-801
R 28-26-00-810-801 28-26-00-810-804
28-46-00-810-812 R 31-55-00-810-801 R R AMM 28-11-42-000-002 R AMM 28-11-42-400-002 R R AMM 28-12-00-200-001
AMM 28-26-00-710-001 AMM 28-46-00-740-001 ASM 28-26/01
R  ASM 28-46/03 ASM 28-46/04
 3. Fault Confirmation
__________________ Fuel - Unwanted Transfer From The Left Wing Tank To The Center Tank At Any TimeFuel, Main Transfer System - Auto Control FailureFuel, Main Transfer System - Control Valve 1 (Left) Does Not CloseL(R) Surge Tank Overflow Sensor 28QJ1(2) Unwanted (Spurious) Warnings/Indications involving the SDAC Removal of the Clack Valve 214QM(216QM), 215QM(217QM) Installation of the Clack Valve 214QM(216QM), 215QM(217QM) Inspection of the Tank Venting SystemOperational Test of the Main Transfer SystemFunctional (BITE) Test
R A. Table of the circuit breakers referred to in this procedure:
R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION R -------------------------------------------------------------------------------R 121VU FUEL/CTR TK/L&R XFR/CTL & IND 2QL R26 R 121VU FUEL/CTR TK/L&R XFR/CTL & IND 1QL R25
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞28-26-00∞∞∞∞∞∞∞∞∞∞Page 216
 Aug 01/05 CESR B. Test R R During aircraft operations on the ground and in flight, it is possible R for fuel to get into the vent/surge-tank. If this occurs during normal R (serviceable) operation the clack valves let the fuel move back into the R related wing-tank. R R If the two clack valves 214QM and 216QM become unserviceable, in the R closed position, fuel can collect in the related vent/surge-tank. The R collected fuel quantity will increase (cumulatively in separate, R successive additions) until the status of the related sensor 28QJ1 R changes from dry to wet. R R This can cause the two related results that follow: R - the ECAM warning 'FUEL L WING TK OVERFLOW' will be given, if in an R applicable flight phase R - the P/BSW-FUEL/CTR TK/L XFR (5QL) FAULT legend will light, if it was R set to the on (pushed in) position.

R NOTE : The FAULT legend of the P/BSW-5QL can come on in the AUTO or the
____ R MAN (fuel transfer) configuration.
R In the left wing it can also cause the fuel level to increase until it is R above the level of the center-tank vent (duct/outlet-pipe at RIB22). R Gravity can then cause fuel flow through the center-tank vent and into R the center tank (Ref. TASK 28-12-00-810-801). R
　
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