AMM 24-22-00-710-001 ASM 28-21/01
Fuel Pumps - Right Wing Tank Fuel Pump No. 1 (Inner)
22QA System Malfunction
Fuel Pumps - Right Wing Tank Fuel Pump No. 1
Contactor Control Failure (Normal Supply)
Operational Test of the Generator Line Contactor
(GLC-1) Opening in the Smoke Procedure
「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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A219
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3. Fault Confirmation
__________________
A. Test
(1) Do the Operational Test of the Generator Line Contactor (GLC-1) Opening in the Smoke Procedure (Ref. AMM TASK 24-22-00-710-001).
NOTE : During the job set-up of the operational test, the left and
____ right wing-tank fuel-pumps 1 are supplied by AC BUS 1 and DC BUS 1 (the normal operational supplies from engine 1).
During the procedure of the operational test, when the generator line contactor (GLC-1) is open (GEN 1 LINE P/BSW released out), the left and right wing-tank fuel-pumps 1 are supplied from the electrical ground power unit through the transfer circuit.
(a) If, during the job set-up of the AMM Task referenced in step (1), the right wing-tank fuel-pump 1 symbol on the ECAM fuel page:
- stays an amber cross line, do the procedure for the Right Wing Tank Fuel Pump No. 1 Contactor Control Failure (Normal Supply) (Ref. TASK 28-21-00-810-808).
- shows amber LO, do the procedure for the Right Wing Tank Fuel Pump No. 1 (Inner) 22QA System Malfunction (Ref. TASK 28-21-00-810-802).
(b) If, during the procedure of the AMM Task referenced in step (1), the right wing-tank fuel-pump 1 symbol on the ECAM fuel page:
- shows an amber cross line, do Para. 4.A.
- shows amber LO, do the procedure for the Right Wing Tank Fuel Pump No. 1 (Inner) 22QA System Malfunction (Ref. TASK 28-21-00-810-802).
4. Fault Isolation_______________
A. Procedure
(1) Do the initial checks as given in:
- step (a), with a multimeter
and/or
- step (b), by substitution and replacement.
「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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page A220
May 01/04R
CES
(a) Do a check of the electrical circuits (Ref. ASM 28-21/01) as follows:
1 At the panel (contactor box) 107VU, remove the contactor-54QA.
_
2 At the contactor (relay) base 54QA-A, make sure that:
_
- a ground is available at terminal Z (through the closed, de-energized, contacts of contactor-18QA, terminals 4 to 3)
- 28VDC is available at terminal X, when the P/BSW-14QA is set to on (through the closed contacts A3 to A1).
3 Replace all the unserviceable items.
_
4 Make sure that the contactor-54QA removed in step 1_ is
_
installed.
5 Do the test given in Para. 3.A.
_
(b) Swap (interchange) the items listed that follow, one at a time, with those from the left wing-tank fuel-pump 1 system where applicable:
- the CNTOR-R WING TK STBY SPLY, PUMP 1 (54QA)
- the CNTOR-R WING TK PUMP 1 SPLY (18QA)
- the P/BSW-FUEL/R TK PUMPS/1 (14QA)
- the RELAY-BUS 1/ESS. R TK PUMP 1 (64QA)
- the P/BSW-EMER ELEC PWR/SMOKE DRILL (13XU).
NOTE : The P/BSW-EMER ELEC PWR/SMOKE DRILL (13XU) is only
____ included to complete the list of possible causes. It can only be swapped with a serviceable spare.
1 Do the test given in Para. 3.A.
_
2 If the fault is removed/cleared:
_ a Replace all the unserviceable items.
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