(3) Do the Interrogation of the FQIS Input Parameters Pages (Ref. AMM TASK 28-42-00-740-003).
(4) Examine the Input Parameters Page 2 (FUEL, FQIS PROBE CAPACITANCES) for multiple LRUs shown with an asterisk(*), XXs, or blanks:
- if the capacitance values are shown as such, and the FQIC (3QT) message is still shown on the FQIS STATUS page, go to Para. 4.A.
- if the capacitance values are shown correctly, but the FQIC (3QT) message is still shown on the FQIS STATUS page, do the TSM procedure (Ref. TASK 28-42-00-810-801)
- if the capacitance values are shown correctly, and the FQIC (3QT) message is not shown on the FQIS STATUS page, no more maintenance work is necessary.
「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 D214
201-299, 401-499, Aug 01/05 CES
R (5) If the faults that follow occur randomly (and/or), go to Para. 4.A.
R step (17):
R - intermittent fuel-probe faults reported
R - intermittent fuel-tank degraded indications
R - intermittent L(R) wing-tank outer-cell under read by up to 400 kg
R (880 lb) when L(R) fuel-probe 34QT1(2) is reported.
R NOTE : The different fault symptoms in this scenario (sequence of
____ R events) do not follow a logical pattern or appear to be R related.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Post SB 28-1087 For A/C 001-049,051-061,101-105,201-203,
A. Procedure
(1) Make a record of all the fuel-probes (in the wing-tank identified in Para. 3.B. step (2)) shown with an asterisk(*), XXs, or blank.
(a) If available, use the print function on the MCDU to do this.
(2) Make a comparison of your record of LRUs with the LRUs in the tables that follow:
------------------------------------------------------------------LEFT WING GROUP A - HARNESS 13QT1 - FUSED CONNECTOR PLUG 4041VC-A
L CADENSICON 19QT1 L QTY PROBE 21QT1 L QTY PROBE 23QT1 L QTY PROBE 25QT1 L QTY PROBE 27QT1 L QTY PROBE 29QT1 L QTY PROBE 31QT1 L QTY PROBE 33QT1
------------------------------------------------------------------LEFT WING GROUP B - HARNESS 14QT1 - FUSED CONNECTOR PLUG 4043VC-A
L QTY PROBE 22QT1 L QTY PROBE & CIC 24QT1 L QTY PROBE 26QT1 L QTY PROBE 28QT1 L QTY PROBE 30QT1 L QTY PROBE 32QT1 L QTY PROBE 34QT1
「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 D215
201-299, 401-499, Aug 01/05 CES ------------------------------------------------------------------RIGHT WING GROUP A - HARNESS 13QT2 - FUSED CONNECTOR PLUG 4042VC-A
R CADENSICON 19QT2 R QTY PROBE 21QT2 R QTY PROBE 23QT2 R QTY PROBE 25QT2 R QTY PROBE 27QT2 R QTY PROBE 29QT2 R QTY PROBE 31QT2 R QTY PROBE 33QT2
------------------------------------------------------------------RIGHT WING GROUP B - HARNESS 14QT2 - FUSED CONNECTOR PLUG 4044VC-A
R QTY PROBE 22QT2 R QTY PROBE & CIC 24QT2 R QTY PROBE 26QT2 R QTY PROBE 28QT2 R QTY PROBE 30QT2 R QTY PROBE 32QT2 R QTY PROBE 34QT2
(3) When you have identified the wing and group that shows a malfunction, open the C/Bs 1QT and 2QT.
(4) Remove the access panels 574BB and 674BB located on the lower surface of the wing (false spar box). These panels are forward of and between flap track 2 and the out board edge of the inner flap (Ref. AMM TASK 05-25-70-200-004).
(5) Get access through the openings 574BB and 674BB. The fused connector plugs are installed below the tank wall connectors 4039VC1 and 4040VC1 (4039VC2 and 4040VC2).
(6) Interchange (swap) the positions of the applicable fused connector plugs 4041VC-A and 4043VC-A (4042VC-A and 4044VC-A) from its original position to the same group of the opposite wing (Ref. the tables in step (2)).
NOTE : It is important that the fused connector is swapped with the
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本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油4(8)
