(2) Make sure that the hydraulic systems are depressurized.
(3) On the overhead panel 23VU:
- release the FLT CTL/ELAC 1 pushbutton switch (the OFF legend of the FLT CTL/ELAC1 pushbutton switch comes on).
(4) On the overhead panel 23VU:
- push the FLT CTL/ELAC 1 pushbutton switch (the OFF legend of the FLT CTL/ELAC1 pushbutton switch goes off).
NOTE : In case of a reset of the ELAC 1 with the circuit breaker, the
____ supply breaking must be more than 5 seconds.
NOTE : If the ELAC FAULT warning disappears after several resets,
____
replace the computer.
B. Test
(1) 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 B204
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CES
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
A. If the test confims the fault:
- Do the operational test of the ELACs (Ref. AMM TASK 27-93-00-710-001) to make sure that the ELAC 1 servoes its associated surfaces.
(1) If the flight controls move according to the ELAC 1 servoing:
(a) Remove the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001).
(b) At the ELAC 1 receptacle, do a check of the resistance between pin AB/11J and pin AE/14C (Ref. ASM 27-92/03).
1 If the resistance is less than 280 ohms:
_
a Remove the RELAY-ELAC 1 ANN SPLY (40CE1) (Ref. IPC
_
27920803).
b Do a check of the resistance of the relay between pin X1
_ and pin X2 (Ref. ASM 27-92/03).
- If the resistance is less than 280 ohms: . replace the RELAY-ELAC 1 ANN SPLY (40CE1) (Ref. IPC 27920803) . replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-400-001).
- If the resistance is between 280 and 400 ohms: . do a check and repair the wiring of the RLY ELAC FAULT signal from the relay to the ELAC 1 (Ref. ASM 27-92/03) . install the relay . replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-400-001).
2 If the resistance is more than 400 ohms:
_
a Remove the relay 40CE1.
_
b Do a check of the resistance of the relay between pins X1
_ and X2 (Ref. ASM 27-92/03).
- If the resistance is more than 400 ohms: . replace the RELAY-ELAC 1 ANN SPLY (40CE1) (Ref. IPC 27920803) . install the ELAC 1 (Ref. AMM TASK 27-93-34-400-001).
- If the resistance is between 280 and 400 ohms: . do a check and repair the wiring of the RLY ELAC FAULT signal from the relay to the ELAC 1. (Ref. ASM 27-92/03) . install the relay . install the ELAC 1 (Ref. AMM TASK 27-93-34-400-001).
「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 B205
Aug 01/05 CES
3 If the resistance is between 280 and 400 ohms:
_
a Remove the FCDC-1 (3CE1) (Ref. AMM TASK 27-95-34-000-001).
_
- if the warning ELAC1 stays: . install the FCDC-1 (3CE1) (Ref. AMM TASK 27-95-34-400-001). . continue the trouble shooting at Para. b_.
- if the warning ELAC1 goes off, replace the FCDC-2 (3CE2) (Ref. AMM TASK 27-95-34-000-001) and (Ref. AMM TASK 27-95-34-400-001).
- install the ELAC 1 (Ref. AMM TASK 27-93-34-400-001).
b Remove the FCDC-2 (3CE2) (Ref. AMM TASK 27-95-34-000-001).
_
- if the warning ELAC1 stays: . install the FCDC-2 (3CE2) (Ref. AMM TASK 27-95-34-400-001). . continue the trouble shooting at Para. c_.
- if the warning ELAC1 goes off, replace the FCDC-2 (3CE2) (Ref. AMM TASK 27-95-34-000-001) and (Ref. AMM TASK 27-95-34-400-001).
- install the ELAC 1 (Ref. AMM TASK 27-93-34-400-001).
c Remove the RLY- ELAC 1 ANN SPLY (40CE1) (Ref. IPC
_
27920803).
- if the warning ELAC1 stays: . install the RLY-ELAC 1 ANN SPLY (40CE1) (Ref. IPC 27920803). . continue the trouble shooting at Para. d_.
- if the warning ELAC1 goes off, replace the RLY-ELAC 1 ANN SPLY (40CE1) (Ref. IPC 27920803).
- install the ELAC 1 (Ref. AMM TASK 27-93-34-400-001).
d Do a check and repair the wiring of the DSI 4/1 (ELAC1
_ FAILED) signals from the FCDC1 (3CE1) and the FCDC2 (3CE2) to the RLY-ELAC 1 ANN SPLY (40CE1) (Ref. ASM 27-95/04) and (Ref. ASM 27-95/05).
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