R (g) Use a multimeter to do a test, to make sure that each of the
R 115VAC three phases are available at the connector 22QA-A (Ref.
R ASM 28-21/01).

R (h) Set the R TK PUMPS 1 P/BSW (14QA) to OFF (release out). This will
R de-energize the contactor 18QA.

R 1_ Use a multimeter to do a test, to make sure that each of the
R 115VAC three phases are not available at the connector 22QA-A.

R NOTE : This is to make sure that the contactor 18QA does not

____ R stay in the on position (stuck/held on).
R (i) If the 115VAC three phase supply voltage measured in step (g) is R correct, replace the PUMP-FUEL NO 1, R WING TK (22QA) (Ref. AMM R TASK 28-21-51-000-001) and (Ref. AMM TASK 28-21-51-400-001).
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 May 01/04 CES

 (j) If the 115VAC three phase supply voltage measured in step (g) is not correct (no voltage, incorrect voltage or a phase is missing), do all the sub-steps that follow:
 1 Clean and dry:
_

 - all the fuel pump cable fairings

 - the fuel pump cover assembly

 - the fuel pump supply cable and the related end connector

 - the aircraft wing structure adjacent to the route of the supply cable across the wing surface

 - the aircraft wing structure at the rear spar, adjacent to the landing light, where the fuel pump supply cable leaves the conduit and passes through the cable guide (bottom skin).

 2 Make sure that good lighting is available.
_ Do a visual inspection and look for distortion (pinched or streched) damage (chafed or cut), discoloration, overheating (burnt/melted or arcing) liquid contamination, loose electrical connection or incorrect assembly, of the items that follow:
 - the electrical receptacle

 - the supply cable end connector 22QA-A

 - the supply cable

 - the cable guide

 - the fuel pump fairings

 - the aircraft wing structure adjacent to the route of the supply cable (across the wing surface and at the rear spar)

 - junction box (bracket assembly) on the rear spar.

 NOTE : Incorrect installation of the fuel pump fairings can
____ damage the supply cable. This can cause electrical arcing and damage to the aircraft structure.
 3 If any damage (electrical wiring, fairing or structural) is
_ found, tell AIRBUS within 10 days.
 4 If the aircraft structure is damaged, refer to Skins and
_ R Plating - Allowable Damage, P. Block 101, (Ref. ASRM 57-21-11).
 5 If necessary, replace the damaged fairings with serviceable
_
 items.

 6 If the fuel pump supply cable between the connector 22QA-A and
_ the related junction box (bracket assembly) on the rear spar is seen to be damaged, repair as follows:
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R CAUTION : DO NOT USE IN-LINE SPLICES TO REPAIR SECTIONS OF
_______
R ELECTRICAL CABLE THAT ARE BEHIND A FAIRING OR IN A
R CONDUIT.
R THIS WILL MAKE SURE THAT IT IS POSSIBLE TO SEE THE
R REPAIR FOR AN INSPECTION (REF. ESPM 20-53-29).

R a_ If necessary, replace the unserviceable:
R - protective sleeve
R - wire(s)
R - connector.

R b_ Connect the new wire(s) of the fuel pump supply cable where
R the wiring passes through the junction box (bracket
R assembly), by a splice(s) (Ref. ESPM 20-53-21).

R c_ Make sure that the length of the new supply cable when
R assembled, between the front face of the connector 22QA-A
R and the forward face of the cable guide (that shows outside
R the wing-skin) is 1320 mm (51.9685 in.).

R d_ If necessary, make any final adjustment in the length of
R the supply cable across the lower surface of the wing
R during the installation of the rear fairing.

R e_ Feed the surplus cable (small amount only) back up the
R flexible conduit to the junction box (bracket assembly) on
R the rear spar.

R f_ Make sure that the supply cable is held tight by the P-clip
R at the cable guide.

R NOTE : It is important that the fuel pump supply cable is

____ R installed correctly as given in steps b_ thru f_. R Incorrect installation of the cable can cause it to R get damaged. If the cable is too short it will put R tension on the wires and plug. If the cable is too R long you will not be able to install the fairings R correctly. This is because the unwanted cable R (excess length) will become looped and get trapped R during the installation of the intermediate and rear R fairings.
　
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