(3) On the ECAM control panel, push (in) the FUEL P/BSW.
(4) Make sure that the FUEL page shows on the ECAM lower display unit.
(5) Wait 60 seconds.
(6) Continue as follows:
NOTE : The FUEL page FQIs will show XXs in amber color, for 35
____ seconds, during the FQIC power up BITE test. A FQIS sensor fault must be sensed by the FQIC for 60 seconds before the applicable LRU identification is transmitted to the CFDS as unserviceable. The fault message is shown on the MCDU when set to SYSTEM REPORT/TEST (FUEL) and the FQIS STATUS page.
(a) Do the procedure to get access to the SYSTEM REPORT/TEST menu page (Ref. AMM TASK 31-32-00-860-001).
(b) When the SYSTEM REPORT/TEST menu page comes into view, push the line key adjacent to FUEL.
(c) When the FUEL menu page comes into view, push the line key adjacent to FQIS STATUS.
(7) Examine the FQIS STATUS page.
(8) If the message C QTY PROBE 38QT or the C QTY PROBE 38QT/WRG:
(a) Is not shown, maintenance steps are not necessary.
(b) Is shown, go to Para. 4.A.
NOTE : You can get data from the:
____
- Description and Operation (D and O) section of the R Aircraft Maintenance Manual (AMM), the Fuel Quantity R Indicating System (FQIS) (Ref. AMM 28-42-00 P.Block 001)
- Trouble-shooting Manual (TSM) - Task Supporting Data (Ref. P. Block 301)
- Aircraft Schematic Manual (ASM) (Ref. ASM 28-42/09).
「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 B250
Aug 01/05 CES NOTE : You can get more Trouble-shooting data from the
____
CFDS(FUEL):
- Input Parameters Page 2 (Ref. AMM TASK 28-42-00-740-003) R - FQIC Trouble Shooting Data (Ref. AMM TASK 28-42-00-740-R 009).
NOTE : OPTIONAL TESTING:
____ If a DC Capacitance Fuel System Tester is available, measurements can be taken before a decision is made to go into or close up a fuel tank. The Tester can be connected to the FQIC rack connector or the related tank wall connector. (Ref. P. Block 301 for the Tank Units DC Capacitance Values).
**ON A/C ALL
4. Fault Isolation
_______________
**ON A/C 001-049, 051-061, 101-105, 201-203,
A. Procedure
(1) Temporarily replace the FQIC 3QT with a serviceable item (Ref. AMM TASK 28-42-34-000-001) and (Ref. AMM TASK 28-42-34-400-001).
NOTE : The step (1) has been included because it is important to make
____ sure that the FQIC 3QT is serviceable before you start more steps.
(2) If the message C QTY PROBE 38QT is not shown:
- complete the installation of the FQIC (3QT) (Ref. AMM TASK 28-42-34-000-001) and (Ref. AMM TASK 28-42-34-400-001).
(3) If the message C QTY PROBE 38QT is shown:
(a) Remove the temporarily installed FQIC 3QT and return it to stores (Ref. AMM TASK 28-42-34-000-001).
(b) Get access to the tank wall connector 7509VC in the right MLG bay (Ref. AMM TASK 32-12-00-010-001).
(c) Do a visual inspection and electrical tests of the aircraft wiring (Ref. AWM 28-42-15) between the FQIC rack connector 3QT-A and the tank wall connector 7509VC-A as follows:
1 Visual Inspection
_ Make sure that good lighting is available. Do a visual inspection and look for distortion (bent, pinched or stretched), damage (broken, chafed or cut), discoloration, overheating (burnt, melted or arcing), liquid contamination,
「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 : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page B251
Aug 01/05 CES loose electrical connection or incorrect assembly, of the
items that follow:
- FQIC rack connector 3QT-A, pins 8H, 5H and 15G
- receptacle 212VC and connector 212VC-A
- receptacle 1973VC and connector 1973VC-A
- terminal block 7517VT and all of its connections
- receptacle 7575VC and connector 7575VC-A
- pressure seal feedthrough 7505VP
- receptacle 7509VC-A, pins B, T and A
- 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 (Ref. AWM 28-42-15):
- FQIC rack connector 3QT-A, pin 8H to connector 7509VC-A, pin B (signal)
- FQIC rack connector 3QT-A, pin 5H to connector 7509VC-A, pin T (common drive return) 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油3(35)
