- go to Para. 4.A.
(b) Operates as specified:
- go to Para. 4.A.(3).
4. Fault Isolation
_______________
A. Procedure
(1) Replace the canister check valve, VALVE ASSY-OUTLET - Part of the CANISTER-PUMP, FUEL 84QM(85QM) (Ref. AMM TASK 28-21-52-000-004) and (Ref. AMM TASK 28-21-52-400-004).
(2) Do the test given in Para. 3.A.
(3) If the functional test of the applicable center tank canister check valve was as specified or if the fault continues in further flights:
- get access to the center tank (Ref. AMM TASK 28-00-00-000-001) and (Ref. AMM TASK 57-17-11-000-001).
(4) Do a Leak Test of the Main Fuel-Pump-System Pipelines in the center tank (Ref. AMM TASK 28-21-00-790-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B224
201-299, 401-499, Aug 01/05 CES
(5) If the unwanted fuel transfer/migration is from:
(a) The aircrafts left side:
1 Do a check of and replace, if necessary, the items of the
_ left-wing surge-tank scavenge system that follow:
NOTE : If the jet pump 66QM is inoperative, the fuel-level in
____ the left-wing vent/surge-tank can increase until it is above the level of the center-tank vent (duct/outlet-pipe at RIB22). Fuel can then flow through the center-tank vent and enter the center tank.
a The jet adaptor assembly (Ref. AMM TASK 28-21-53-000-003)
_ and (Ref. AMM TASK 28-21-53-400-003).
b The scavenge jet pump (66QM) (Ref. AMM TASK 28-21-53-000-
_ 001) and (Ref. AMM TASK 28-21-53-400-001).
c The check valve (37QM) (Ref. AMM TASK 28-21-43-000-003) and
_ (Ref. AMM TASK 28-21-43-400-003).
d The jet-pump (feed/drive supply) pipe-line, between the
_ fuel-manifold (adjacent to the check valves 33QM and 34QM, in-board of RIB2) and the jet-pump 66QM.
e The jet-pump (suction) pipe-line, between the suction inlet
_ pickup point in the left-wing vent/surge-tank and the jet-pump 66QM.
f The jet-pump (output/discharge) pipe-line, between the
_ jet-pump 66QM and the fuel discharge (outlet) adjacent to the intercell transfer valve 28QM (outboard of RIB15).
2 Do a check (examination) of the LP fuel supply line (in the
_
center tank) between:
- the left sealed RIB1 tank wall and the left fuel pump canister 84QM
- the left sealed RIB1 tank wall and the crossfeed valve 10QM
- the left sealed RIB1 tank wall and the APU LP fuel supply line where it passes through the rear spar/tank wall.
(b) The aircrafts right side:
1 Do a check (examination) of the LP fuel supply line (in the
_
center tank) between:
- the right sealed RIB1 tank wall and the right fuel pump canister 85QM
- the right sealed RIB1 tank wall and the crossfeed valve 10QM
- the right sealed RIB1 tank wall and the defuel/transfer valve 11QM.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B225
201-299, 401-499, Aug 01/05 CES
(6) Repair/replace all the unserviceable fuel pipes and connections (Ref. AMM TASK 28-00-00-000-001) and (Ref. AMM TASK 28-00-00-400-001).
(7) Do the test given in step (4).
(8) If the fault continues:
- do a leak test of the applicable left (right) RIB1 using the Leak Test of the Wing-Tank Outer and Inner Cells (Ref. AMM TASK 28-11-00-790-002).
(9) Repair all the leaks in the applicable RIB1.
See Fuel Tank Leak Checks (Ref. AMM TASK 28-11-00-280-002).
(10) Do the test given in step (8).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B226
201-299, 401-499, Aug 01/05 CES
TASK 28-21-00-810-841
Center Tank Pump Auto Control (Two Minute Run Period At Main Engine Start)
Failure
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
- RELAY-CTR TK PUMPS 1 CTL (51QA)
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油2(13)
