(2) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).

 (a) On the ECAM control panel (CP), push (in) the FUEL pushbutton switch (P/BSW).

 (b) Make sure that the FUEL page shows on the ECAM lower Display Unit (DU).

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 CES

 (3) At the ECAM FUEL page examine, for ten minutes, the FQI values of the FOB and each tank for fluctuations.
 NOTE : If a tank FQI value fluctuates the FOB value will fluctuate.
____
 (4) If after examination, for the specified time, the fuel tank FQIs are:

 - seen to fluctuate, do step (5)

 - not seen to fluctuate, no more maintenance work steps are necessary, but make a note in the aircraft log to record the incident.

 (5) Make a record of which tank(s) FQI(s) are seen to fluctuate and then do Para. 4.A.

 4. Fault Isolation
_______________
 A. Procedure
 (1) Make sure that all the applicable fuel and fuel tank scheduled servicing tasks from the Maintenance Planning Document (MPD) have been complied with.
 (a) If necessary, use the methods given in (Ref. AMM TASK 12-31-28-660-001) to complete this procedure.

 (b) Where applicable, start the procedure at step (2) on the fuel tank recorded in Para. 3.A.(5). and then do the other tanks.

 NOTE : Steps (1) thru (3) are necessary to eliminate (as far as
____ is possible) the effects of fuel contamination (example, water/ice or microbiological).
 (2) If you are not sure when the fuel tanks were last:

 (a) Sampled for microbiological contamination, do (Ref. AMM TASK 12-32-28-281-003).

 (b) Drained of water content, do (Ref. AMM TASK 12-32-28-281-001).

 (3) If you are not sure of the quanlity of all the fuel in the aircraft tanks:

 (a) Defuel the aircraft (Ref. AMM TASK 28-25-00-650-001).

 (b) Drain the remaining fuel from the fuel tanks (Ref. AMM TASK 28-25-00-650-003).

 (c) Refuel 1 Read the Flight Manual (Ref. FM 2.04.00).

_
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 2_ For additives, refer to the engine installation and operating
 manual for the applicable aircraft engine installation
 (Vendors).
 3_ Do a refuel with fuel of the correct specification and from a
 good (reputable) source, (Ref. AMM TASK 12-11-28-650-003) or

 (Ref. AMM TASK 12-11-28-650-004).
 (4) Do the test given in Para. 3.A.
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 QUANTITY INDICATING - TASK SUPPORTING DATA
__________________________________________
 1. General
_______ The diagrams that follow are to give you an introduction into the Fuel Quantity Indicating System (FQIS). This is followed by some text in the form of an operators guide. This is to help you do the trouble-shooting tasks.
 Also included:
 - Trouble-shooting Data

 - The Tank Units DC Capacitance Values.

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 CES  For the FQIS:

 - Physical Layout R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 301)
 **ON A/C 301-399,

 (Ref. Fig. 301A)
 **ON A/C ALL

 - Block Diagram R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 302)
 **ON A/C 301-399,

 (Ref. Fig. 302A)
 **ON A/C ALL

 - Temperature Sub-system Block Diagram. R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 303)
 **ON A/C 301-399,

 (Ref. Fig. 303A) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 2. Introduction to the FQIS (Smiths Industries - Intertechnique) with FQIC
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