- 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

 「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 A222
 Feb 01/03R CES

 - 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).
 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, do this trouble shooting procedure (Ref. TASK 27-90-00-
810-816).

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message: ELAC 2 OR WIRING FROM L B ELEV MODE XDCR 34CE3
 - replace the ELAC-2 (2CE2) (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 MODE XDCR (ANI 7-1) signal from the ELAC 2 (2CE2) MON part to the first terminal block (Ref. ASM 27-93/08).
 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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page A223
 Feb 01/03R
 CES  Failure of the Left Blue Elevator Servocontrol Actuator Solenoid Valve

 CAUTION : DO NOT SWAP FLIGHT CONTROL COMPUTERS. IF THERE IS A SHORT CIRCUIT,
_______ YOU WILL CAUSE DAMAGE TO A SERVICEABLE COMPUTER WHEN YOU SWAP THEM.
 1. Possible Causes
_______________
 - RELAY-THS MOT 3 INHIBITION 1 (51CE)

 - RELAY-THS MOT 3 INHIBITION 2 (52CE)

 - ELAC-2 (2CE2)

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

 - solenoid valve of the servocontrol 34CE3

 - wiring of the SOL VLV1 signal from the servocontrol (34CE3) to the ELAC2 (2CE2)

 - wiring from the ELAC2 (2CE2) COM part to the ELAC2 COM part

 - wiring from the ELAC2 (2CE2) COM part to the ELAC2 MON part

 - wiring from the ELAC2 (2CE2) MON part pins AE/13A and AE/10C to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
IPC 27920803
 AMM 27-34-51-000-001 Removal of the Elevator Servo Control
 AMM 27-34-51-000-005 Removal of the Elevator Servo Control Actuator
 Solenoid Valve
 AMM 27-34-51-400-001 Installation of the Elevator Servo Control
 AMM 27-34-51-400-004 Installation of the Elevator Servo Control Actuator
 Solenoid 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 27-93/08
 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).

 「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 A224
 Feb 01/03R CES

 4. Fault Isolation
_______________

 A. If the tests give the maintenance message L B ELEV MODE VLV 34CE3:
 (1) Remove RELAY-THS MOT 3 INHIBITION 1 (51CE) and RELAY-THS MOT 3 INHIBITION 2 (52CE) (Ref. IPC 27920803).

 (2) Do a check of the resistance between pins X1 and X2 of the relays.

 (a) If the resistance is less than 280 ohms:

 - replace the RELAY-THS MOT 3 INHIBITION 1 (51CE) and/or RELAY-THS MOT 3 INHIBITION 2 (52CE).
　
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