(f) Do a check (Ref. AWM 28-46-06) of the aircraft wiring (FLSCU-1 BITE 2 test command line) between the FLSCU-1 rack connector AA, pin 15A and the FQIC rack connector AB, pin 14E or the (aircraft wiring (FLSCU-2 BITE 2 test command line) between the FLSCU-2 rack connector AA, pin 15A and the FQIC rack connector AB, pin 12E).
(g) Do a check (Ref. AWM 28-46-06) of the aircraft wiring (FLSCU-1 LS8 output line) between the FLSCU-1 rack connector AB, pin 4A and the FQIC rack connector AC, pin 3J or the (aircraft wiring (FLSCU-2 LS8 output line) between the FLSCU-2 rack connector AB, pin 4A and the FQIC rack connector AC, pin 1H).
(h) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).
(i) Do the test in Para. 3.A.
(8) If the fault continues or if there is no continuity in Step (5):
(a) Drain, open and vent the tank (Ref. AMM TASK 28-10-00-910-001) and (Ref. AMM TASK 28-10-00-910-002).
(b) Do a wiring check of the HARNESS-LEFT WING TANK A (57QT), ( HARNESS-RIGHT WING, TANK A (58QT)) (Ref. AWM 28-46-04) and replace, if necessary (Ref. AMM TASK 28-42-43-000-005) and (Ref. AMM TASK 28-42-43-400-005).
(c) If the harness is serviceable, replace the SENSOR-LOW LVL (1500KG), L WING TANK CHANNEL A (40QJ1) (SENSOR-LOW LVL (1500KG), R WING TANK CHANNEL A (40QJ2)) (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 A223
Aug 01/05R
CES
**ON A/C ALL
TASK 28-46-00-810-817
Center Tank High Level Dummy Sensor 6QJ
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)
- aircraft wiring
- CTR TK HIGH LVL DUMMY SENSOR (6QJ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-46-00-810-818 FLSCU1(2) 7QJ(9QJ)
AMM 28-46-00-740-001 Functional (BITE) Test
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)
ASM 28-46/01
AWM 28-46-01
AWM 28-46-03
3. Fault Confirmation
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
A. Do the BITE test of the FLSS (Ref. AMM TASK 28-46-00-740-001).
(1) Examine the FLSS STATUS Page.
(2) If the page shows messages for one or more of the other sensors and/or the FLSCU-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 A224
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