1. Possible Causes
_______________
 - ELAC-1 (2CE1)

 - wiring of the POS XDCR MON (ANI 2-1) signal from the ELAC 1 (2CE1) MON part to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
27-90-00-810-811 Loss of the ACS1 Signal of the ELAC1 COM Side
 27-90-00-810-812 Loss of the ACS1 Signal of the ELAC1 MON Side
 27-90-00-810-813 Loss of the ACS1 of the ELAC1 COM and MON Sides
 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) R AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) ASM 27-93/07
 3. Fault Confirmation
__________________
 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).

 (a) If the ground scanning gives the maintenance message: ELAC1 OR WIRING FROM L ELEV POS MON XDCR

 - refer to Para. Fault Isolation.

 (b) If the ground scanning gives at least two maintenance messages of the two lists below: First list:

 - ELAC1 COM OR WIRING FROM THS ACTR XDCR2 9CE

 - ELAC1 OR WIRING FROM L B ELEV POS XDCR 34CE3

 - ELAC1 OR WIRING FROM R B ELEV POS XDCR 34CE4 Second list:

 - ELAC1 MON OR WIRING FROM THS ACTR XDCR2 9CE

 - ELAC1 OR WIRING FROM L ELEV POS MON XDCR

 - ELAC1 OR WIRING FROM R ELEV POS MON XDCR

 「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 A215
 Aug 01/99 CES

 - ELAC1 OR WIRING FROM L G ELEV MODE XDCR 34CE1

 - ELAC1 OR WIRING FROM R Y ELEV MODE XDCR 34CE2

 1_ First case:
 Combination of maintenance messages of the first list, do this
 trouble shooting procedure (Ref. TASK 27-90-00-810-811).
 2_ Second case:
 Combination of maintenance messages of the second list, do
 this trouble shooting procedure (Ref. TASK 27-90-00-810-812).
 3_ Third case:
 Combination of maintenance messages of the first and second
 lists, do this trouble shooting procedure (Ref. TASK 27-90-00-
810-813).

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message: ELAC1 OR WIRING FROM L ELEV POS MON XDCR
 - 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:
 - do a check and repair the wiring of the POS XDCR MON (ANI 2-1) signal from the ELAC 1 (2CE1) MON part to the first terminal block (Ref. ASM 27-93/07).
 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 A216
 May 01/99R
 CES  Loss of the Signal of the Left Blue Elevator-Servocontrol Servovalve by the ELAC 1

 1. Possible Causes
_______________
 - ELAC-1 (2CE1)

 - SERVO CTL-L ELEVATOR, OUTBD B (34CE3)

 - servovalve

 - wiring of the L ELEV SV (ANO 1) signal from the ELAC 1 (2CE1) COM part, pins AB/2E, 2D to the ELAC 1 COM part, pins AA/2H, 2G

 - wiring from the ELAC 1 (2CE1) COM part to the MON part

 - wiring from the ELAC 1 (2CE1) MON part, pins AD/3C, 4C to the first terminal block

 - wiring of the LVDT SV SPLY signal

 - wiring of the LVDT POS (ANI 3-1) signal R - wiring of the L ELEV SV (ANO 1) signal from the ELAC 1 (2CE1) COM part, R pins AB/2E, 2D to ELAC 1 COM part pins AA/2H, 2G
 2. Job Set-up Information
______________________
 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
　
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