1. Possible Causes
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- ELAC-1 (2CE1)
- SERVO CTL-R ELEVATOR, OUTBD B (34CE4)
- servovalve
- wiring of the R ELEV SV (ANO 2) signal from the ELAC 1 (2CE1) COM part, pins AB/2J, 2H to the ELAC 1 COM part, pins AA/3H, 3G
- wiring from the ELAC 1 (2CE1) COM part to the MON part
- wiring from the ELAC 1 (2CE1) MON part, pins AD/3D, 4D to the first terminal block
- wiring of the LVDT SV SPLY signal
- wiring of the LVDT POS (ANI 3-2) signal R - wiring of R ELEV SV (ANO 2) signal from the ELAC 1 (2CE1) COM part pins R AB/2J, 2H to the ELAC 1 COM part pins AA/3H, 3G
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-34-51-000-001 Removal of the Elevator Servo Control AMM 27-34-51-000-008 Removal of the Elevator Servo Control Actuator Servo
Valve AMM 27-34-51-400-001 Installation of the Elevator Servo Control AMM 27-34-51-400-003 Installation of the Elevator Servo Control Actuator
Servo Valve
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 27-96-00-710-020 Operational Test of the Side Stick Assembly
(Activation for the BITE Test)
AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
ASM 27-93/07
3. Fault Confirmation
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A. Test
(1) Do the operational test of the side stick assembly (activation for the BITE test) (Ref. AMM TASK 27-96-00-710-020).
(2) 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 A254
Feb 01/03 CES
4. Fault Isolation
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R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-214,
A. If the test gives the maintenance message:
ELAC 1 COM OR WIRING TO R B ELEV SERVO VLV 34CE4
- 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 servovalve (Ref. AMM TASK 27-34-51-000-008) (Ref. AMM TASK 27-34-51-400-003).
(2) If the fault continues:
(a) Do a check of the wiring of the R ELEV SV (ANO 2) signal from the ELAC 1 (2CE1) COM part, pins AB/2J, 2H to the ELAC 1 COM part, pins AA/3H, 3G (Ref. ASM 27-93/07):
- if there is continuity see Para. (b)
- if there is no continuity repair the above wiring.
(b) Do a check of the wiring from the ELAC 1 (2CE1) COM part to the MON part from pins AA/3J, 3K to pins AD/3B, 4B (Ref. ASM 27-93/07):
- if there is continuity see Para. (c)
- if there is no continuity repair the above wiring.
(c) Do a check of the wiring from the ELAC 1 (2CE1) MON part, pins AD/3D, 4D to the first terminal block (Ref. ASM 27-93/07).
- if there is continuity see Para. (d)
- if there is no continuity repair the above wiring.
(d) Do a check of the wiring of the LVDT SV SPLY signal, from the servocontrol (34CE4) to the first terminal block (Ref. ASM 27-93/07).
- if there is continuity see Para. (e)
- if there is no continuity repair the above wiring.
(e) Do a check of the wiring of the LVDT POS (ANI 3-2) signal, from the ELAC 1 (2CE1) MON part to the servocontrol (34CE4) (Ref. ASM 27-93/07).
- if there is continuity see Para. (3)
- if there is no continuity repair the above wiring.
(3) Replace the SERVO CTL-R ELEVATOR, OUTBD B (34CE4) (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001).
R **ON A/C 106-149, 215-299, 301-399, 401-499,
A. If the test gives the maintenance message:
ELAC1 COM OR WIRING TO R B ELEV SERVO VLV 34CE4
- 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:
(a) Do a check of the wiring of R ELEV SV (ANO 2) signal from the ELAC 1 (2CE1) COM part pins AB/2J, 2H to the ELAC 1 COM part pins AA/3H, 3G (Ref. ASM 27-93/07):
- if there is continuity, see Para. (b) 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(38)
