2_ Replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001) and
 (Ref. AMM TASK 27-93-34-400-001).
 3_ Replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-000-001) and
 (Ref. AMM TASK 27-94-34-400-001).

 (b) If the resistance is more than 10 Ohms: 1 Replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-000-001) and
_ (Ref. AMM TASK 27-94-34-400-001). Install the ELAC2 (Ref. AMM TASK 27-93-34-400-001).
 2 If the fault continues:
_
 - do a check and repair the wiring of the ACS1 SPLY XDCR signal from the SEC2 COM side to the first terminal block, pins AA/12F and AA/12G (Ref. ASM 27-94/08).
 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 ∞∞27-90-00∞∞∞∞∞∞∞∞∞∞Page 249
 May 01/04R
 CES  Loss of the ACS1 Signal of the ELAC2 MON Side and SEC2 MON Side

 1. Possible Causes
_______________
 - ELAC-2 (2CE2)

 - SEC-2 (1CE2)

 - wiring of the ACS1 SPLY XDCR signal from the SEC2 MON side to the COM side

 - wiring of the ACS1 SPLY XDCR signal from the SEC2 COM side to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
27-90-00-810-801 Failure of an Alternating Current Supply (ACS)
 AMM 27-93-34-000-001 Removal of the ELAC (2CE1,2CE2)
 AMM 27-93-34-400-001 Installation of the ELAC (2CE1,2CE2)
 AMM 27-94-34-000-001 Removal of the SEC (1CE1,1CE2,1CE3)
 AMM 27-94-34-400-001 Installation of the SEC (1CE1,1CE2,1CE3)
 AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
 ASM 27-94/08

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the ground scanning gives at least two maintenance messages of the list below: L B ELEV MODE XDCR 34CE3 L ELEV POS MON XDCR OF ELAC2/SEC2 R B ELEV MODE XDCR 34CE4 R Y ELEV POS MON XDCR OF ELAC2/SEC2 ELAC2 MON OR INPUT OF THS ACTR XDCR1 9CE SEC2 MON OR INPUT OF THS ACTR XDCR3 9CE
 (1) Remove the ELAC2 (Ref. AMM TASK 27-93-34-000-001) and the SEC2 (Ref. AMM TASK 27-94-34-000-001).
 「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 ∞∞27-90-00∞∞∞∞∞∞∞∞∞∞Page 250
 May 01/04R
 CES

 (2) At the SEC2 receptacle, do a check of the resistance between the pin AB/9E and the pin AB/9F (Ref. ASM 27-94/08):
 (a) If the resistance value is less than 10 Ohms:
 1 Do this procedure (Ref. TASK 27-90-00-810-801).

_ 2 Replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001) and
_
 (Ref. AMM TASK 27-93-34-400-001).

 3 Replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-000-001) and
_
 (Ref. AMM TASK 27-94-34-400-001).

 (b) If the resistance is more than 10 Ohms: 1 Replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-000-001) and
_ (Ref. AMM TASK 27-94-34-400-001). Install the ELAC2 (Ref. AMM TASK 27-93-34-400-001).
 2 If the fault continues:
_ a Do a check of the wiring of the ACS1 SPLY XDCR signal from
_ the SEC2 MON side to the COM side, pins AE/10D and AE/10E to pins AB/8E and AB/8F (Ref. ASM 27-94/08).
 - if the wiring is correct, go to Para. b_
 - if the wiring is not correct, repair the above wiring. b Do a check and repair the wiring of the ACS1 SPLY XDCR
_ signal from the SEC2 COM side to the first terminal block, pins AB/9E and AB/9F (Ref. ASM 27-94/08).
 B. Do the test given in para. 3.

 Loss of the Normal Law due to Multiple Failures
 1. Possible Causes

_______________

 2. Job Set-up Information

______________________
 Not Applicable

 3. Fault Confirmation

__________________
 A. Not applicable, you cannot confirm this fault on the ground.
 4. Fault Isolation
　
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