(Ref. ASM 27-93/12).
B. Do the tests given in Para. 3.
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CES Incorrect Position of the THS for the ELAC 1
1. Possible Causes
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- ELAC-1 (2CE1)
- electronic module N.2 of the picth trim actuator
- monitor position transducer of the THS actuator R - command position transducer of the THS actuator
- RLY-PITCH TRIM ACTR MOT 2 SPLY (36CE2)
- wiring from the relay (36CE2) pin A/X2 to the ground
- wiring from the relay (36CE2) to the ELAC 1 (2CE1)
- wiring from the relay (36CE2) to the SEC 1 (1CE1)
- wiring from the THS actuator (9CE) pin B/M to the ground
- wiring from the relay (36CE2) to the THS actuator (9CE)
- wiring from the relay (36CE2) A/A2 to the C/B (19CE2)
- wiring from the XDCR MON MOT 2 (V1, V2) signal R - wiring from the XDCR COM MOT 2 (V1, V2) signal
2. Job Set-up Information
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A. Referenced Information
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REFERENCE DESIGNATION
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IPC 27920803 AMM 27-44-56-000-001 Removal of the Position Transducer from the THS Actuator 9CE AMM 27-44-56-400-001 Installation of the Position Transducer to the THS Actuator 9CE AMM 27-44-57-000-002 Removal of the Electronic Modules of the Pitch Trim Actuator AMM 27-44-57-400-002 Installation of the Electronic Modules of the Pitch
Trim Actuator
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 27-96-00-710-022 Operational Test of the THS Actuator Electrical
Control (Activation for BITE Test)
AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
ASM 27-93/12
3. Fault Confirmation
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A. Test
(1) Do the operational test of the THS actuator electrical control (Ref. AMM TASK 27-96-00-710-022).
NOTE : Do the ground setting only with the ELAC 1.
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(2) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
4. Fault Isolation
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A. If the BITE test gives the maintenance message:
THS ACTR POS ERROR 9CE OF ELAC1
- replace the ELAC-1 (2CE1), (Ref. AMM TASK 27-93-34-000-001) and (Ref. AMM TASK 27-93-34-400-001).
(1) If the fault continues:
- replace the electronic module N.2 of the picth trim actuator, (Ref. AMM TASK 27-44-57-000-002) and (Ref. AMM TASK 27-44-57-400-002).
(2) If the fault continues:
- replace the monitor position transducer of the THS actuator, (Ref. AMM TASK 27-44-56-000-001) and (Ref. AMM TASK 27-44-56-400-001).
R (3) If the fault continues:
R - replace the command position transducer of the THS actuator, (Ref.
R AMM TASK 27-44-56-000-001) and (Ref. AMM TASK 27-44-56-400-001).
R (4) If the fault continues :
- replace the RLY-PITCH TRIM ACTR MOT 2 SPLY (36CE2) (Ref. IPC 27920803)
R (5) If the fault continues :
- do a check of the wiring from the relay (36CE2) pin A/X2 to the ground (Ref. ASM 27-93/12).
- do a check of the wiring from the relay (36CE2) to the ELAC 1 (2CE1), from the pin A/X1 to the pin AD/15J (Ref. ASM 27-93/12).
- do a check of the wiring from the relay (36CE2) to the SEC 1 (1CE1), from the pin A/X1 to the pin AE/13E (Ref. ASM 27-93/12).
(a) If there is no continuity, repair the wiring.
(b) If there is continuity :
- do a check of the wiring from the THS actuator (9CE) pin B/M to the ground, (Ref. ASM 27-93/12).
- do a check of the wiring from the relay (36CE2) to the THS actuator (9CE) from the pin A/A1 to the pin B/K (Ref. ASM 27-93/12). 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 3(15)
