- connector 4040VC2-A, pins <Z, GG and AA
- adjacent and related connecting wires.
2 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:
Right Wing Group A (Ref. AWM 28-42-04)
- FQIC rack connector 3QT-A, pin 13K to connector 4039VC2-A, pin H (ultracomp, VOS-TEMP, HIGH)
- FQIC rack connector 3QT-A, pin 14K to connector 4039VC2-A, pin J (ultracomp, VOS-TEMP, LOW)
Right Wing Group B (Ref. AWM 28-42-10) and (Ref. AWM 28-42-12)
- FQIC rack connector 3QT-A, pin 3A to connector 4040VC2-A, pin <Z (ultracomp signal)
- FQIC rack connector 3QT-A, pin 7A to connector 4040VC2-A, pin GG (common drive return)
- FQIC rack connector 3QT-A, pin 4D to connector 4040VC2-A, pin AA (common drive).
(d) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C202
Aug 01/05R CES
(e) Connect the:
- shorting plug 4044VC-A to the receptacle 4044VC (Ref. AMM TASK 28-42-43-400-008)
- tank wall connectors 4039VC2-A and 4040VC2-A to their related receptacles.
(f) Install the initial FQIC 3QT (Ref. AMM TASK 28-42-34-400-001).
(g) Do the test given in Para. 3.B.
(4) 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).
(5) Do a check of the HARNESS-RIGHT WING TANK A (58QT) (Ref. AWM 28-42-04) and replace, if necessary, (Ref. AMM TASK 28-42-43-000-005) and (Ref. AMM TASK 28-42-43-400-005).
(6) Do a check of the HARNESS-RIGHT WING TANK B (64QT) (Ref. AWM 28-42-10) and replace, if necessary, (Ref. AMM TASK 28-42-43-000-005) and (Ref. AMM TASK 28-42-43-400-005).
(7) If the harnesses 58QT and 64QT are serviceable, replace the ULTRACOMP-RIGHT WING TANK (52QT) (Ref. AMM TASK 28-42-48-000-001) and (Ref. AMM TASK 28-42-48-400-001).
NOTE : If the right wing tank ultracomp 52QT is replaced, 1000kg
____ (2200lb) of fuel must be put in the right wing tank before you can fully test the ultracomp.
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.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C203
Aug 01/05R
CES TASK 28-42-00-810-829
Fuel Quantity - Dualcomp 53QT, Left 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-LEFT WING TANK A (57QT)
- HARNESS-LEFT WING TANK B (63QT)
- DUALCOMP-RIB 2-3, L WNG TK GROUP B (53QT)
- aircraft wiring
- shorting plug 4041VC-A
- shorting plug 4043VC-A
2. Job Set-up Information
______________________
A. 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
R AMM 28-42-00-740-009 Interrogation of the (SIMMONDS/GOODRICH) FQIS Trouble R Shooting Data AMM 28-42-34-000-001 Removal of the Fuel Quantity-Indicating Computer (FQIC) (3QT) AMM 28-42-34-400-001 Installation of the Fuel Quantity-Indicating Computer (FQIC) (3QT) AMM 28-42-43-000-005 Removal of the Wing Tank Harness 57QT(58QT), 63QT(64QT) AMM 28-42-43-000-008 Removal of the Wing Tank Fuel Quantity Indicating Probe Fused/Shorting Plug Connectors AMM 28-42-43-400-005 Installation of the Wing Tank Harness 57QT(58QT), 63QT(64QT)
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