R  (b) Disconnect the wing tank harness from the sensors that follow (Ref. TASK 28-46-15-000-001): - FOR 57QT, 58QT 17QJ1(17QJ2) - FOR 63QT, 64QT 25QJ1(25QJ2) 26QJ1(26QJ2) 27QJ1(27QJ2). 
R R  (3) Attach the connectors together at all the end of the harness with adhesive tape. 
R R  NOTE : This will help the harness to move more easily through its____ conduit.
 (4) Disconnect the wing tank harness from the aircraft structure. To do this, remove the related cable-ties (1) and the related bolts (2) and loop-clamps (3). Discard all the cable-ties (1) that you remove. 
R R  WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK._______ LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
 (5) Remove and discard the lockwire from the nut (6).
 (6) Remove the nut (6) and the washer (5).
 (7) Remove the electrical backshell (8) from the rear spar.
 (8) Remove and discard the O-ring (4). 
R  (9) Attach string to all the ends of the wing tank harness.
 NOTE : This will help you to install a new wing tank harness.____
 (10) Identify each piece of string with its related probe or sensor FIN No.
 (11) Make sure that the wing tank harness is free to move through its conduit. Remove cable-ties as necessary.
 (12) Carefully pull the electrical backshell (8) to remove the wing tank harness from the aircraft. When you remove the wing tank harness make sure that it does not catch. 
R R R  (13) Make sure that all the pieces of string are correctly identified. Remove the wing tank harness from the string. Make sure that you do not pull the string out of the conduits.

R  **ON A/C 303-399, 
R  Subtask 28-42-43-020-090-A 
R  B. Removal of the Wing Tank Harness 
R  (1) Disconnect the Wing Tank Harness 57QT(58QT), 63QT(64QT) from inboard 
R  of the RIB 6. 
R  (a) Disconnect the wing tank harness from the probes that follow 
R  (Ref. TASK 28-42-15-000-005): 
R  - FOR 57QT, 58QT 
R  21QT1(21QT2) 54QT1(54QT2) 23QT1(23QT2) 25QT1(25QT2) 
R  27QT1(27QT2) 
R  - FOR 63QT, 64QT 
R  54QT1(54QT2) 56QT1(56QT2) 26QT1(26QT2). 
R  (b) Disconnect the wing tank harness from the sensors that follow 
R  (Ref. TASK 28-46-15-000-001) (Ref. TASK 28-46-17-000-001) 
R  (Ref. TASK 28-46-19-000-001): 
R  - FOR 57QT, 58QT 
R  16QJ1(16QJ2) 29QJ1(29QJ2) 38QJ1(38QJ2) 39QJ1(39QJ2) 
R  40QJ1(40QJ2) 
R  - FOR 63QT, 64QT 
R  23QJ1(23QJ2) 24QJ1(24QJ2) 56QJ1(56QJ2). 
R  (c) Disconnect the wing tank harness: 
R  - FOR 57QT, 63QT 
R  from the dualcomp (53QT) (Ref. TASK 28-42-46-000-001). 
R 
R  - FOR 58QT, 64QT 
R  from the ultracomp (52QT) (Ref. TASK 28-42-48-000-001). 
R  (2) Disconnect the wing tank harness 57QT(58QT), 63QT(64QT) from outboard 
R  of the RIB 6. 
R  (a) Disconnect the wing tank harness from the probes that follow 
R  (Ref. TASK 28-42-15-000-005): 
R  - FOR 57QT, 58QT 
R  29QT1(29QT2) 59QT1(59QT2) 61QT1(61QT2) 
R  - FOR 63QT, 64QT 
R  28QT1(28QT2) 30QT1(30QT2) 60QT1(60QT2) 34QT1(34QT2).

R  (b) Disconnect the wing tank harness from the sensors that follow 
R  (Ref. TASK 28-46-15-000-001): 
R  - FOR 57QT, 58QT 
R  17QJ1(17QJ2) 
R  - FOR 63QT, 64QT 
R  25QJ1(25QJ2) 26QJ1(26QJ2) 27QJ1(27QJ2). 
R  (3) Attach the connectors together at all the ends of the harness with 
R  adhesive tape. 
R  NOTE : This will help the harness to move more easily through its____ 
R  conduit. 
R  (4) Disconnect the wing tank harness from the aircraft structure. To do 
R  this remove: 
R  - the cable-ties (1) 
R  - the nylon spacers (9) 
R  - the bolts (2) 
R  - the loop-clamps (3). 
R  (5) Discard all the cable-ties (1) that you remove. 
R  WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK._______ 
R  LOOSE LOCKWIRE CAN CUT OR BLIND YOU. 
R  (6) Remove and discard the lockwire from the nut (6). 
R  (7) Remove the nut (6) and the washer (5). 
R  (8) Remove the electrical backshell (8) from the rear spar. 
R  (9) Remove and discard the O-ring (4). 
　
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