- connector 4040VC1(2)-A, pins U, <N and T

 - adjacent and related connecting wires.

 (b) Electrical Tests Do a continuity test (Ref. ESPM 20-52-21) and a test for a short circuit (Ref. ESPM 20-52-22) of the wires that follow (Ref. AWM 28-42-11) ((Ref. AWM 28-42-10)):

 - FQIC rack connector 3QT-A, pin 6D(10K) to connector 4040VC1(2)-A, pin U (probe 6 signal)
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page A209
 201-299, 401-499, Aug 01/05 CES

 - FQIC rack connector 3QT-A, pin 1C(6J) to connector 4040VC1(2)-A, pin <N (common drive return)

 - FQIC rack connector 3QT-A, pin 15D(15K) to connector 4040VC1(2)-A, pin T (common drive).

 (c) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).

 (d) Connect the:

 - fused connector 4043VC-A(4044VC-A) to the receptacle 4043VC-A(4044VC-A) (Ref. AMM TASK 28-42-43-400-008)

 - tank wall connector 4040VC1-A(4040VC2-A) to the receptacle 4040VC1(4040VC2).

 (e) Install the FQIC 3QT (Ref. AMM TASK 28-42-34-400-001).

 (f) Do the test given in Para. 3.B.

 (11) If the fault continues, drain and open the tank to the air (Ref. AMM TASK 28-10-00-910-001) and (Ref. AMM TASK 28-10-00-910-002).

 (12) Do a check of the HARNESS-CHAN B, L WING TK INR (14QT1) (HARNESS-CHAN B, R WING TK INR (14QT2)) (Ref. AWM 28-42-11) ((Ref. AWM 28-42-10)) and replace, if necessary, (Ref. AMM TASK 28-42-43-000-007) and (Ref. AMM TASK 28-42-43-400-007).

 (13) If the harness 14QT1(2) is serviceable, replace the PROBE-FUEL QTY NO 6, RIB 3-4 L WNG TK INR GROUP B (26QT1) (PROBE-FUEL QTY NO 6, RIB 3-4 R WNG TK INR GROUP B (26QT2)) (Ref. AMM TASK 28-42-15-000-001) and (Ref. AMM TASK 28-42-15-400-001).

 **ON A/C ALL
 5. Close-up
________
 A. Close-up and Removal of Equipment
 (1) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002).

 (2) If necessary, de-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

 (3) Make sure that the access panel 574BB (674BB) opened during this trouble-shooting procedure is closed.

 (4) Make sure that the work area is clean, clear of tool(s) and other items.

 (5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page A210
 May 01/05 CES

 TASK 28-42-00-810-810

 Fuel Quantity Probe 27QT1(2), Left(Right) Wing Tank
 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
_______________
 - FQIC (3QT)

 - HARNESS-CHAN A, L WING TK INR (13QT1)

 - HARNESS-CHAN A, R WING TK INR (13QT2)

 - PROBE-FUEL QTY NO 7, RIB 6-7 L WNG TK INR GROUP A (27QT1)

 - PROBE-FUEL QTY NO 7, RIB 6-7 R WNG TK INR GROUP A (27QT2)

 - HARNESS-LEFT WING TANK A (57QT)

 - HARNESS-RIGHT WING TANK A (58QT)

 - aircraft wiring

 - shorting plug 4041VC-A(4042VC-A)

 - fused connector 4041VC-A(4042VC-A)

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 20-00-00 ESPM 20-52-21 ESPM 20-52-22 AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
 External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power 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 28-42-00-740-003 Interrogation of the FQIS Input Parameters Pages
　
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