「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 291
 Aug 01/05R
 CES

 (c) If the harness is serviceable, replace the SENSOR-FULL LVL, L WNG TK INR 2 CHANNEL B (27QJ1) (SENSOR-FULL LVL, R WNG TK INR 2 CHANNEL B (27QJ2)) (Ref. AMM TASK 28-46-15-000-001) and (Ref. AMM TASK 28-46-15-400-009)
 「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 292
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 **ON A/C ALL

 TASK 28-46-00-810-812
 L(R) Surge Tank Overflow Sensor 28QJ1(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-1 (7QJ)

 - FLSCU-2 (9QJ)

 - SENSOR-HIGH LVL, LEFT WING SURGE TK CHANNEL A (28QJ1)

 - SENSOR-HIGH LVL, RIGHT WING SURGE TK CHANNEL A (28QJ2)

 - aircraft wiring

 - HARNESS-L VENT SURGE TK (34QJ1)

 - HARNESS-R VENT SURGE TK (34QJ2)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-46-00-810-818 FLSCU1(2) 7QJ(9QJ) ESPM 20-00-00 AMM 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank AMM 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas AMM 28-46-00-740-001 Functional (BITE) Test AMM 28-46-16-000-001 Removal of the Overflow Sensor AMM 28-46-16-400-001 Installation of the Overflow Sensor AMM 28-46-34-000-001 Removal of the Fuel-Level Sensing Control-Unit
 (FLSCU) (7QJ,9QJ) AMM 28-46-34-400-001 Installation of the Fuel-Level Sensing Control-Unit
 (FLSCU) (7QJ,9QJ)
 AMM 28-46-43-000-001 Removal of the Vent Surge Tank Harness
 AMM 28-46-43-400-001 Installation of the Vent Surge Tank Harness
 ASM 28-46/04
 AWM 28-46-01
 AWM 28-46-06
 AWM 28-46-11
 AWM 28-46-12

 「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 293
 Aug 01/05R CES

 3. Fault Confirmation
__________________

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 A. Test
 (1) Do the BITE test of the FLSS (Ref. AMM TASK 28-46-00-740-001).

 (2) Examine the FLSS STATUS page on the MCDU.

 (3) If the page shows messages for one or more of the other sensors and/or the FLSCU-1(2), do (Ref. TASK 28-46-00-810-818).

 (4) If the message 284616 L(R) SURGE SENSOR 28QJ1(2):

 - is shown, do Para. 4.A.

 - is not shown, no work steps are necessary.

 NOTE : You can get more data from the:
____
 - Aircraft Maintenance Manual (AMM) Chap. 28-46-00, the Fuel Level Sensing System, Description and Operation (D and O)

 - Trouble Shooting Manual (TSM) - Task Supporting Data (Ref.

 P. Block 301)

 - Aircraft Schematic Manual (ASM) (Ref. ASM 28-46/04). You can get more Trouble-shooting data from the CFDS(FUEL):

 - Input Parameters Page 3 (Ref. P. Block 301)

 - FLSCU Trouble-shooting Data (Ref. P. Block 301).

 NOTE : OPTIONAL TESTING:
____ Where a PSD A320-2 Fuel Level Sensing Test Set is available measurements can be taken before a decision is made to go into or close up a fuel tank. The Test Set enables the tank mounted components and tank wiring to be tested from the tank wall connectors.
 **ON A/C 301-399,
 A. Test
 (1) Do the BITE test of the FLSS (Ref. AMM TASK 28-46-00-740-001).

 (2) Examine the FLSS STATUS page on the MCDU.

 (3) If the page shows messages for one or more of the other sensors and/or the FLSCU-1(2), do (Ref. TASK 28-46-00-810-818).

 「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 294
　
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