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 two lists below: First list:
- ELAC2 COM OR INPUT OF THS ACTR XDCR1 9CE
- ELAC2 OR WIRING FROM L G ELEV POS XDCR 34CE1
- ELAC2 OR WIRING FROM R Y ELEV POS XDCR 34CE2
Second list:
- ELAC2 MON OR INPUT OF THS ACTR XDCR1 9CE
- ELAC2 OR WIRING FROM L ELEV POS MON XDCR
- ELAC2 OR WIRING FROM R ELEV POS MON XDCR
- ELAC2 OR WIRING FROM L B ELEV MODE XDCR 34CE3
- ELAC2 OR WIRING FROM R Y ELEV MODE XDCR 34CE4
(1) First case: Combination of maintenance messages of the first list, do this trouble shooting procedure (Ref. TASK 27-90-00-810-814).
「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 234
May 01/04R CES
(2) Second case: Combination of maintenance messages of the second list, do this trouble shooting procedure (Ref. TASK 27-90-00-810-815).
(3) Third case: Combination of maintenance messages of the first and second lists:
- replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001) (Ref. AMM TASK 27-93-34-400-001). NOTE: To help the trouble shooting of the ELAC in the workshop, put a label with the indication: "failure of internal relays K20 and K21".
(a) If the fault continues:
- replace the SEC-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001) (Ref. AMM TASK 27-94-34-400-001).
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 235
May 01/04R
CES Loss of the ACS1 Signal of the SEC1 COM Side
1. Possible Causes
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- ELAC-1 (2CE1)
- SEC-1 (1CE1)
- wiring of the ACS1 SPLY XDCR signal from the SEC1 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 27-94/07
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: SEC1 COM OR WIRING FROM THS ACTR XDCR2 9CE SEC1 OR WIRING FROM L B ELEV POS XDCR 34CE3 SEC1 OR WIRING FROM R B ELEV POS XDCR 34CE4
(1) Remove the ELAC1 (Ref. AMM TASK 27-93-34-000-001) and the SEC1 (Ref. AMM TASK 27-94-34-000-001).
(2) At the SEC1 receptacle, do a check of the resistance between the pin AA/12F and the pin AA/12G (Ref. ASM 27-94/07):
(a) If the resistance is less than 10 Ohms:
1 Do this procedure (Ref. TASK 27-90-00-810-801).
_
「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 236
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2_ Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001) and
(Ref. AMM TASK 27-93-34-400-001).
3_ Replace the SEC-1 (1CE1) (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-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001) and 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(103)
