R SFCC Interface to SLT FPPU or SLAT FPPU Fault.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
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START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
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CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
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GEAR.
1. Possible Causes
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- SFCC-1 (21CV)
- SFCC-2 (22CV)
- 28CV (28CV)
- A/C Wiring betwwen the SFCC 1 (2) ARINC tray interface and the slat FPPU
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ASM 278106S01 ASM 278107S01 AMM 27-51-34-000-001 Removal of the SFCC (21CV,22CV) AMM 27-51-34-400-001 Installation of the SFCC (21CV,22CV) AMM 27-80-00-866-004 Extending the Slats on the Ground AMM 27-80-00-866-005 Retracting the Slats on the Ground AMM 27-81-19-000-001 Removal of the Feed Back Position Pick-Off Unit AMM 27-81-19-400-001 Installation of the Feed Back Position Pick-Off Unit AMM 27-84-00-710-001 Operational Test of the Slat System
3. Fault Confirmation
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A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21
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B. Reset and Inialization.
(1) At the circuit breakers.
(a) Open the circuit breakers.
(b) Wait for 3 seconds and close the circuit breakers.
(c) Wait for 60 seconds
(2) Move the slats.(Ref. AMM TASK 27-80-00-866-004) (Ref. AMM TASK 27-80-00-866-005)
(a) Examine the UPPER ECAM and the SD FLT/CTL page for the fault warnings and System status.
(b) Access the SLT ON GROUND FAULTS log and do a check of the ground log.
(c) If an UPPER ECAM warning, SD FLT/CTL status and a ground log fault message, is displayed do the Fault Isolation.
(d) If the UPPER ECAM, SD FLT/CTL status and the SLT ON GROUND FAULTS log are clear.No further maintenance actions are required.
4. Fault Isolation
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A. Procedure.
(1) Set the MCDU to MENU MODE and access submenu <SLT SYSTEM DATA
(a) Press the line key 1R <PPU.
(b) Do a check of the PPU DATA (DEG) page. Refer to page block 301 table 1 for FPPU fault analysis.
(c) If the no data "xxxx.x"is shown
(2) Swap SFCC 1 and SFCC 2 (Ref. AMM TASK 27-51-34-000-001) for (Ref. AMM TASK 27-51-34-400-001) do Para.2,3 and 4 only.
(a) Access the SLT ON GROUND FAULTS and do a check of the ground log.
(b) If the fault moves with SFCC 1(2).
(c) Install the SFCC 1 (2) in their initial locations.
(d) Replace the unserviceable SFCC-1 (21CV) (SFCC-2 (22CV)) SFCC 1(2) Ref. Para. 4.A.(2).
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(3) Do the steps at 4.A.(1).
(a) If data is shown,do step 3.B.(2).
(b) Set the MENU MODE and access the FLP ON GROUND FUULTS and check that the ground log is clear.
(4) If the fault does not move.
(a) On the FPPU 27CV, swap the electrical connectors 27CV-A and 27CV-B.
(b) If the fault moves to the other SFCC, go to step 4.A.(5).
(c) If the fault remains in the same circuit do step 4.A.(7). 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 飞行操纵 2(58)
