C. Test
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. Open the circuit breaker 10CA1.
2. On the FCU: The A/THR pushbutton switch comes on.
- push the A/THR pushbutton
switch
- Push the A/THR pushbutton The A/THR pushbutton switch goes off. switch.
3. Close the circuit breaker 10CA1.
4. Open the circuit breaker 10CA2.
5. On the FCU: The A/THR pushbutton switch comes on.
- push the A/THR pushbutton
switch
- Push the A/THR pushbutton The A/THR pushbutton switch goes off. switch.
4. Fault Isolation
_______________
A. If the A/THR pushbutton switch does not come on when you open the circuit breaker 10CA1 only:
- replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the A/THR 2 SW MON and A/THR 2 SW COM discretes (from the FCU (2CA) to the first terminal block) (Ref. ASM 22-31/01).
B. If the A/THR pushbutton switch does not come on when you open the circuit breaker 10CA2 only:
- replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the A/THR 1 SW MON and A/THR 1 SW COM discretes (from the FCU (2CA) to the first terminal block) (Ref. ASM 22-31/01).
R
R C. 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 ∞∞22-31-00∞∞∞∞∞∞∞∞∞∞Page 211
Feb 01/05 CES
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
「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 ∞∞22-31-00∞∞∞∞∞∞∞∞∞∞Page 212
Feb 01/05R
CES A/THR Engagement Inoperative on the FMGC 1
1. Possible Causes
_______________
- FMGC-1 (1CA1)
- FCU (2CA)
- wiring of the A/THR 1 SW COM and A/THR 1 SW MON discretes (from the FCU (2CA) to the FMGC 1 (1CA1))
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-81-12-000-001 Removal of the FCU (2CA)
AMM 22-81-12-400-001 Installation of the FCU (2CA)
AMM 22-83-34-000-001 Removal of the FMGC (1CA1,1CA2)
AMM 22-83-34-400-001 Installation of the FMGC (1CA1,1CA2)
AMM 22-96-00-710-001 Operational Test of the AFS
ASM 22-31/01
3. Fault Confirmation
__________________
A. Test
(1) On the FCU, push the A/THR pushbutton switch.
(2) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the result for the FMGC 1.
4. Fault Isolation
_______________
A. If the test gives the maintenance message AFS : FMGC1/FCU (ATHR SW):
- replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
(1) If the fault continues:
- replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
(2) If the fault continues:
- do a check and repair the wiring of the A/THR 1 SW COM and A/THR 1 SW MON discretes (from the FCU (2CA) to the FMGC 1 (1CA1)) (Ref. ASM 22-31/01).
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 ∞∞22-31-00∞∞∞∞∞∞∞∞∞∞Page 213
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本文链接地址：A320 Trouble Shooting Manual 排故手册 AUTO FLIGHT 自动飞行1(80)
