4. Fault Isolation
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A. Procedure
(1) Interchange the SFCC 1 (2) with SFCC 2 (1) (Ref. AMM TASK 27-51-34-000-001) (Ref. AMM TASK 27-51-34-400-001).
(2) Do the test given in Para. 3.A:
(a) If the fault does not continue, replace the initial SFCC-1 (21CV) (SFCC-2 (22CV)) (Ref. AMM TASK 27-51-34-000-001) and (Ref. AMM TASK 27-51-34-400-001).
(b) If the fault continues, replace the ADIRU-2 (1FP2) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
(3) Do the test given in Para. 3.A.
- if the fault continues, do the next step.
(4) Do a check and repair the aircraft wiring (Ref. ASM 27-81/08).
(5) Do the test given in Para. 3.A.
「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 ∞∞27-81-00∞∞∞∞∞∞∞∞∞∞Page 261
May 01/04R
CES SLT Channel No Cross Talk Between SFCC1 and SFFC2. Loss of Cross Computer Link or Faulty Data.
1. Possible Causes
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- SFCC-1 (21CV)
- SFCC-2 (22CV)
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
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 27-84-00-710-001 Operational Test of the Slat System
AMM 31-32-00-860-006 Procedure to Get Access to the SYSTEM REPORT/TEST
F/CTL Page
ASM 27-81/08
3. Fault Confirmation
__________________
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
B. SFCC Reset and Initialization.
(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 and do the next step.
(2) At the MCDU set the SYSTEM REPORT/TEST FLT CTL page (Ref. AMM TASK 31-32-00-860-006):
(a) Set the page for the SFCC related to the slat channel which reported the loss of data.
「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 ∞∞27-81-00∞∞∞∞∞∞∞∞∞∞Page 262
May 01/04R CES
(b) At the applicable SFCC1 (or SFCC2) SYSTEM STATUS SLAT page:
- if the message SLT1 NO SFCC2 DATA (or SLT2 NO SFCC1 DATA) is
shown, do the fault isolation procedure given in Para 4.A. R - if a different message is shown, do the trouble shooting R procedure related to this message.
- if no message is shown , no further maintenance action is necessary.
4. Fault Isolation
_______________
A. Procedure
(1) Interchange SFCC1 with SFCC2 (Ref. AMM TASK 27-51-34-000-001) and (Ref. AMM TASK 27-51-34-400-001).
(2) Do the test given in Para. 3.B.(2):
- if the message stays in the same system, do step (5)
- if the message moves to the opposite system, do the next step.
(3) Replace the SFCC-1 (21CV) or SFCC-2 (22CV) in the slat channel which reported the loss of data (Ref. AMM TASK 27-51-34-000-001) and (Ref. AMM TASK 27-51-34-400-001):
- if the fault continues, do the next step.
(4) Replace the opposite SFCC to that replaced in step (3):
- if the fault continues, do the next step.
(5) Do a check and repair the aircraft wiring between SFCC1 and SFCC2 (Ref. ASM 27-81/08).
(6) Do the operational test of the slats system (Ref. AMM TASK 27-84-00-710-001).
R Slat Position Indication Disagree
1. Possible Causes
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R - FWC-1 (1WW1)
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