______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
78-31-00-810-839 Thrust-Reverser Blocker-Door Stow-Switches Feedback Disagree on Engine 1 78-31-00-810-843 Thrust-Reverser Blocker-Door Deploy-Switches Feedback
Disagree on Engine 1
AMM 78-31-00-710-042 Operational Test of the Thrust Reverser System
AMM 78-31-17-000-001 Removal of the Blocker Door Deploy Switch
(4103KS1,4103KS2)
AMM 78-31-17-400-001 Installation of the Blocker Door Deploy Switch
(4103KS1,4103KS2)
3. Fault Confirmation
__________________
A. Do the operational test of the thrust reverser system (1A and 1B) (Ref. AMM TASK 78-31-00-710-042).
4. Fault Isolation
_______________
A. This fault message is generated if the ECU detects a disagreement between the blocker doors position indicated by the stow switches and the position indicated by the deploy switches through each ECU channel. The ECU cannot isolate the switches that are faulty. This message is triggered if dual failure condition is present.
(1) If the test gives the maintenance messages STOW SW, J5/J6, ECU and DEPL SW, J5/J6, ECU:
- do the related trouble shooting procedures (Ref. TASK 78-31-00-810-839) and (Ref. TASK 78-31-00-810-843).
NOTE : Do a check of the deploy-switches control levers for free
____ operation. Seizure of the control lever shaft may trigger wrong position indication of the blocker doors. If damage is found:
- replace hardware (Ref. AMM TASK 78-31-17-000-001) and (Ref. AMM TASK 78-31-17-400-001) or apply CMM 78-31-17 repair No.1.
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F 『 E C F M E E E E 56 E E E B. Do the test given in Para. 3.A.
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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E C F M E
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TASK 78-31-00-810-836
Thrust-Reverser Blocker-Door Stow and Deploy Switches Feedback Disagree on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
78-31-00-810-840 Thrust-Reverser Blocker-Door Stow-Switches Feedback Disagree on Engine 2 78-31-00-810-844 Thrust-Reverser Blocker-Door Deploy-Switches Feedback
Disagree on Engine 2
AMM 78-31-00-710-042 Operational Test of the Thrust Reverser System
AMM 78-31-17-000-001 Removal of the Blocker Door Deploy Switch
(4103KS1,4103KS2)
AMM 78-31-17-400-001 Installation of the Blocker Door Deploy Switch
(4103KS1,4103KS2)
3. Fault Confirmation
__________________
A. Do the operational test of the thrust reverser system (2A and 2B) (Ref. AMM TASK 78-31-00-710-042).
4. Fault Isolation
_______________
A. This fault message is generated if the ECU detects a disagreement between the blocker doors position indicated by the stow switches and the position indicated by the deploy switches through each ECU channel. The ECU cannot isolate the switches that are faulty. This message is triggered if dual failure condition is present.
(1) If the test gives the maintenance messages STOW SW, J5/J6, ECU and DEPL SW, J5/J6, ECU:
- do the related trouble shooting procedures (Ref. TASK 78-31-00-810-840) and (Ref. TASK 78-31-00-810-844).
NOTE : Do a check of the deploy-switches control levers for free
____ operation. Seizure of the control lever shaft may trigger wrong position indication of the blocker doors. If damage is found:
- replace hardware (Ref. AMM TASK 78-31-17-000-001) and (Ref. AMM TASK 78-31-17-400-001) or apply CMM 78-31-17 repair No.1.
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F 『 E C F M E E E E 56 E E E B. Do the test given in Para. 3.A.
(1) No additional maintenance action is required if the fault is not confirmed. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 EXHAUST(24)
