121VU FUEL/FWD LOW LVL/WING/R 45QJ M23 121VU FUEL/FWD LOW LVL/WING/L 46QJ M22 121VU FUEL/CTR TK/L&R XFR/CTL & IND 2QL R26 121VU FUEL/CTR TK/L&R XFR/CTL & IND 1QL R25
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
B. Test
(1) Do the BITE test of the FLSS (Ref. AMM TASK 28-46-00-740-001).
(2) Examine the FLSS STATUS Page.
(3) If the message 284634 FLSCU1(2) 7QJ(9QJ):
(a) Is not shown, maintenance steps are not necessary.
(b) Is shown, go to Para. 4. If the message is followed by a sensor message or sensor messages, do this Task before troubleshooting the sensor(s).
NOTE : You can get data from the:
____
- Description and Operation (D and O) section of the Aircraft Maintenance Manual (AMM) Chap. 28-46-00, the Fuel Level Sensing System (FLSS)
- Trouble Shooting Manual (TSM) - Task Supporting Data (Ref. P. Block 301)
- Aircraft Schematic Manual (ASM) (Ref. ASM 28-46/01) (Ref. ASM 28-46/02) (Ref. ASM 28-46/03) and (Ref. ASM 28-46/04).
NOTE : You can get more Trouble-shooting data from the
____
CFDS(FUEL):
- Input Parameters Page 3 (Ref. AMM TASK 28-42-00-740-003)
- FLSCU Trouble-shooting Data (Ref. P. Block 301).
NOTE : OPTIONAL TESTING:
____ Where a PSD A320-3 Fuel Level Sensing System Test Set is available, all of the tank-mounted FLSS components can be tested, and the FLSCU relay outputs simulated. Access to the system is gained by removing the FLSCU (one of two) and installing the PSD A320-3.
「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 ∞∞28-46-00∞∞∞∞∞∞∞∞∞∞Page A230
Aug 01/05 CES
**ON A/C 301-399,
B. Test
(1) Do the BITE test of the FLSS (Ref. AMM TASK 28-46-00-740-001).
(2) Examine the FLSS STATUS page.
(3) If the message 284634 FLSCU1(2) 7QJ(9QJ):
(a) Is not shown, maintenance steps are not necessary.
(b) Is shown, go to Para. 4.A. If the message is followed by a sensor message or sensor messages, do this Task before troubleshooting the sensor(s).
NOTE : You can get data from the:
____
- Description and Operation (D and O) section of the Aircraft Maintenance Manual (AMM) Chap. 28-46-00, the Fuel Level Sensing System (FLSS)
- Trouble Shooting Manual (TSM) - Task Supporting Data (Ref. P. Block 301)
- Aircraft Schematic Manual (ASM) (Ref. ASM 28-46/01) (Ref. ASM 28-46/02) (Ref. ASM 28-46/03) and (Ref. ASM 28-46/04).
NOTE : You can get more Trouble-shooting data from the
____
CFDS(FUEL):
- Input Parameters Page 2 (Ref. AMM TASK 28-42-00-740-003)
- Trouble-shooting Data (Ref. P. Block 301).
NOTE : OPTIONAL TESTING:
____ Where a PSDA321-1 Test Set is available, all of the tank-mounted FLSS components can be tested. Where a PSDA321-4 Discrete Indication Switch Unit (DISU), and a PSDA321-2 FLSCU Breakout Unit is available the FLSCU relay outputs can be simulated. Where a PSDA321-4 DISU, and a PSDA321- 3 FQIC Breakout Unit is available the status of discrete outputs originating from the FLSCU can be displayed.
「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 : 301-399, ∞∞28-46-00∞∞∞∞∞∞∞∞∞∞Page A231
May 01/05 CES
**ON A/C ALL
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
A. Procedure
(1) If the two FLSCUs are shown:
- replace FLSCU-1 (7QJ) and FLSCU-2 (9QJ), (Ref. AMM TASK 28-46-34-000-001) and (Ref. AMM TASK 28-46-34-400-001).
(2) If one FLSCU only is shown:
(a) Swap FLSCUs, (Ref. AMM TASK 28-46-34-000-001) and (Ref. AMM TASK 28-46-34-400-001).
(b) Do the test given in Para. 3.B.
(3) If the message changes sides:
- replace the FLSCU-1(2) 7QJ(9QJ) that shows the message, (Ref. AMM TASK 28-46-34-000-001) and (Ref. AMM TASK 28-46-34-400-001).
(4) If the fault continues, and the MCDU shows the original message:
- 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).
(5) If the message FLSCU-1(2) 7QJ(9QJ) 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).
(6) If the message FLSCU-1(2) 7QJ(9QJ) is shown: 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油4(90)
