1. Possible Causes
_______________
- XDCR UNIT-ELEV POS, R (49CE2)
- wiring of the POS RVDT MON SPLY signal
- wiring of the POS RVDT MON V1, V2 signals
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
27-90-00-810-820 Loss of the ACS1 Signal of the ELAC1 MON Side and
SEC1 MON Side
31-32-00-810-933 Failure of the Analog Links
AMM 27-92-13-000-001 Removal of the Elevator Servocontrol Position
Transducer Unit 49CE1, 49CE2 AMM 27-92-13-400-001 Installation of the Elevator Servocontrol Position Transducer Unit 49CE1, 49CE2 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
ASM 27-94/07
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: R R ELEV POS MON XDCR OF ELAC1/SEC1
- refer to Para. Fault Isolation.
(b) If the ground scanning gives at least two maintenance messages of the list below: L ELEV POS MON XDCR OF ELAC1/SEC1 L G ELEV MODE XDCR 34CE1
R R ELEV POS MON XDCR OF ELAC1/SEC1 R Y ELEV MODE XDCR 34CE2 THS ACTR XDCR2 MON 9CE
「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 ∞∞27-30-00∞∞∞∞∞∞∞∞∞∞Page 248
Aug 01/05 CES
- do this trouble shooting procedure (Ref. TASK 27-90-00-810-820).
4. Fault Isolation_______________
R R A. If the test gives the maintenance message R ELEV POS MON XDCR OF ELAC1/SEC1: - disconnect and cross the electrical connectors of the elevator position transducer unit (49CE2) (Ref. ASM 27-93/07) and do the test given in Para. 3.
NOTE : After the test connect the electrical connetors on their initial____ plugs.
(1) If the fault continues: - do the trouble shooting procedure (Ref. TASK 31-32-00-810-933) related to the ANI 2-X analog input signal of the ELAC COM and SEC COM (Ref. ASM 27-93/07) and (Ref. ASM 27-94/07).
R R (2) If the test gives the maintenance message R ELEV POS MON XDCR OF ELAC2/SEC2: - replace the XDCR UNIT-ELEV POS, R (49CE2) (Ref. AMM TASK 27-92-13-000-001) and (Ref. AMM TASK 27-92-13-400-001).
NOTE : The resistance of primary and secondary windings must be____ between 30 ohms and 500 ohms.
R R (3) If the test gives the maintenance message R ELEV POS MON XDCR OF ELAC1/SEC1:
(a) Do a check of the wiring of the POS RVDT MON SPLY signal from the transducer unit (49CE2) plug B to the first terminal block (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 and repair the wiring of the POS RVDT MON V1, V2 signals from the transducer unit (49CE2), plug B to the first terminal block (Ref. ASM 27-93/07).
B. Do the test given in Para. 3.
Loss of the Right Elevator because of its two Servocontrols
1. Possible Causes
_______________
- SERVO CTL-R ELEVATOR, INBD Y (34CE2)
- SERVO CTL-R ELEVATOR, OUTBD B (34CE4)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 27-34-00-200-001 Check of the Elevator Servo Controls and Hinge
Bearings for too much Play and Condition
AMM 27-34-00-710-001 Operational Test of the Elevator and Hydraulic
Actuation
R AMM 27-34-51-000-001 Removal of the Elevator Servo Control
R AMM 27-34-51-400-001 Installation of the Elevator Servo Control AMM 27-96-00-710-008 Operational Test of the Damping Measurement (Elevator)
3. Fault Confirmation
__________________
A. Test
(1) Not applicable, you cannot confirm this fault on the ground.
4. Fault Isolation
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