- no continuity as specified above (resistance check out of range), go to Step (8).

 NOTE : The sensor status (wet or dry) and fuel/air temperature will
____
 have an effect on the resistance value.

 (6) Replace the FLSCU-1 (7QJ) (FLSCU-2 (9QJ)) (Ref. AMM TASK 28-46-34-000-001) and (Ref. AMM TASK 28-46-34-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-46-00∞∞∞∞∞∞∞∞∞∞Page 222
 Aug 01/05R
 CES

R (7) If the fault continues:

R (a) Get access to the tank wall connector 4039VC1(2)-A (for the wing R tank harness 57QT(58QT) (Ref. AMM TASK 28-42-43-000-008).
R (b) Disconnect the free connector 4039VC1(2)-A from the receptacle R 4039VC1(2).
R (c) Do a check (Ref. AWM 28-46-01) and (Ref. AWM 28-46-02) of the aircraft wiring (sensor input line - H) between the FLSCU-1(2) rack connecto AB, pin 10A and the tank wall free connector 4039VC1(2)-A, pin <V.
R (d) Do a check (Ref. AWM 28-46-01) and (Ref. AWM 28-46-02) of the aircraft wiring (sensor input line - L) between the FLSCU-1(2) rack connector AB, pin 10B and the tank wall free connector 4039VC1(2)-A, pin EE.
R (e) Do a check (Ref. AWM 28-46-01) of the aircraft wiring (FLSCU-1 BITE 1 test command line) between the FLSCU-1 rack connector AA, pin 15B and the FQIC rack connector AB, pin 14F, or the (aircraft wiring (FLSCU-2 BITE 1 test command line) between the FLSCU-2 rack connector AA, pin 15B and the FQIC rack connector AB, pin 12F).
R (f) Do a check (Ref. AWM 28-46-01) of the aircraft wiring (FLSCU-1 LS3 output line) between the FLSCU-1 rack connector AB, pin 2A and the FQIC rack connector AC, pin 4H, or the (aircraft wiring (FLSCU-2 LS3 output line) between the FLSCU-2 rack connector AB, pin 2A and the FQIC rack connector AC, pin 1A).
R (g) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-R 00-00).
R (h) Connect the free connector 4039VC1(2)-A to the receptacle R 4039VC1(2).
R (i) Do the test in Para. 3.B.
R (8) If the fault continues or if there is no continuity in Step (5):
R (a) Drain, open and vent the tank (Ref. AMM TASK 28-10-00-910-001) R and (Ref. AMM TASK 28-10-00-910-002).
R (b) Do a wiring check of the HARNESS - GROUP A, L WING TK (57QT) ( R HARNESS - GROUP A, R WING TK (58QT)) (Ref. AWM 28-46-02) and R replace ,if necessary (Ref. AMM TASK 28-42-43-000-005) and R R (Ref. AMM TASK 28-42-43-400-005).
 「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, ∞∞28-46-00∞∞∞∞∞∞∞∞∞∞Page 223
 May 01/05 CES

R  (c) If the harness is serviceable, replace the SENSOR-HI LEVEL, LEFT 
R  WING TANK INNER CHANNEL A (17QJ1) (SENSOR-HI LEVEL, RIGHT WING 
R  TANK INNER CHANNEL A (17QJ2)) (Ref. AMM TASK 28-46-15-000-001) 
R  and (Ref. AMM TASK 28-46-15-400-009). 
R

 「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, ∞∞28-46-00∞∞∞∞∞∞∞∞∞∞Page 224
 May 01/05 CES

 **ON A/C ALL

 TASK 28-46-00-810-804
 L(R) Low Level Sensor 39QJ1(2)
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
 WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
 1. Possible Causes
_______________
 - FLSCU-2 (9QJ)

 - FLSCU-1 (7QJ)

 - SENSOR-LOW LVL (750KG), L WING TANK CHANNEL A (39QJ1)

 - SENSOR-LOW LVL (750KG), R WING TANK CHANNEL A (39QJ2)

 - aircraft wiring

 - HARNESS-GROUP B, L WING TK INR (14QT1)

 - HARNESS-GROUP B, R WING TK INR (14QT2)

 - HARNESS-LEFT WING TANK B (63QT)

 - HARNESS-RIGHT WING TANK B (64QT)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-46-00-810-818 FLSCU1(2) 7QJ(9QJ) R ESPM 20-00-00 AMM 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank R AMM 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas AMM 28-42-43-000-005 Removal of the Wing Tank Harness 57QT(58QT), 63QT(64QT) AMM 28-42-43-000-007 Removal of the Wing-Tank Inner-Cell Group B Harness
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油4(48)