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 - replace the SEC-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).
 1 If the fault continues:
_
 - do a check and repair the wiring of the SEC1 IN EMERGENCY PWR SPLY (DSI3) signal from the SEC1 (1CE1) COM part and MON part to the first terminal block (Ref. ASM 27-92/02).
 (b) If the test does not give a maintenance message:
 - replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001) and (Ref. AMM TASK 27-93-34-400-001).
 1 If the fault continues:
_
 - do a check and repair the wiring of the LOSS OF NORMAL SPLY ON 2PP (DSI53) signal from the ELAC2 (2CE2) COM part and MON part to the first terminal block (Ref. ASM 27-92/02).
 B. Do the test given in Para. 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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page B248
 Aug 01/04R CES

 5. Close-up
________
 A. Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-24-00-864-001).
 「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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page B249
 Aug 01/04R
 CES  Loss of the LGCIU 1 Discrete Inputs for the ELAC

 1. Possible Causes
_______________
R - PROX SNSR-R L/G EXT, SYS 1 (20GA) R - PROX SNSR-L L/G EXT, SYS 1 (21GA) R - PROX SNSR-NLG EXT, SYS 1 (24GA)
 - ELAC-2 (2CE2)

 - LGCIU-1 (5GA1)

 - ELAC-1 (2CE1)

 - wiring from the ELAC 2 (2CE2) to the LGCIU 1 (5GA1)

 - wiring from the ELAC 1 (2CE1) to the LGCIU 1 (5GA1)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-93-34-000-001 AMM 27-93-34-400-001 AMM 27-96-00-740-001 AMM 32-31-71-000-001 AMM 32-31-71-400-001
R AMM 32-31-73-000-001 R R R R AMM 32-31-73-000-005 R R R AMM 32-31-73-400-001 R R R AMM 32-31-73-400-005 R R
ASM 27-92/43

 3. Fault Confirmation
__________________
 A. Test
Removal of the ELAC (2CE1,2CE2)
Installation of the ELAC (2CE1,2CE2)
BITE Test of the EFCS (Ground Scanning)
Removal of the LGCIU (5GA1, 5GA2)
Installation of the LGCIU (5GA1, 5GA2)
Removal of the Proximity-Sensors 9GA(8GA),
11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA),
17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA),
35GA(34GA)
Removal of the NLG Proximity-Sensors 12GA, 13GA,
18GA, 19GA, 24GA, 25GA, 30GA, 31GA, 37GA (36GA), 39GA
(38GA)
Installation of the Proximity-Sensors 9GA(8GA),
11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA),
17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
Installation of the NLG Proximity-Sensors 12GA, 13GA,
18GA, 19GA, 24GA, 25GA, 30GA, 31GA, 37GA (36GA), 39GA
(38GA)

 (1) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
 「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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page B250
 Nov 01/04 CES

 4. Fault Isolation
_______________

 A. Table of the circuit breakers used in this procedure:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/ELAC1/NORM/SPLY 15CE1 B11 105VU FLIGHT CONTROLS/ELAC2/STBY SPLY 16CE2 A02 105VU FLT CTL/ELAC1/STBY SPLY 16CE1 A01 121VU FLIGHT CONTROLS/ELAC2/NORM/SPLY 15CE2 R20
 B. If the test doesn' t confirm the fault and if the maintenance message CHECK LGCIU1 DISC INPUTS was shown after landing gear free-fall extension:
 - no maintenance action is necessary.
 C. If the BITE test gives the maintenance message:
 CHECK LGCIU1 DISC INPUTS R - replace the PROX SNSR-R L/G EXT, SYS 1 (20GA) (Ref. AMM TASK 32-31-73-R 000-001) and (Ref. AMM TASK 32-31-73-400-001).
R (1) If the fault continues:
R - replace the PROX SNSR-L L/G EXT, SYS 1 (21GA) (Ref. AMM TASK 32-31-R 73-000-001) (Ref. AMM TASK 32-31-73-400-001).

R (2) If the fault continues:
R - replace the PROX SNSR-NLG EXT, SYS 1 (24GA) (Ref. AMM TASK 32-31-R 73-000-005) (Ref. AMM TASK 32-31-73-400-005).

R (3) If the fault continues:
R
R - open the circuit breaker (15CE1) on the panel 49VU and the circuit
　
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