3. Fault Confirmation
__________________
A. Test
Removal of the Electronic Control Unit (ECU)Installation of the Electronic Control Unit (ECU)Removal of the Engine Interface Unit (EIU)Installation of the Engine Interface Unit (EIU)Operational Test of the Thrust Reverser SystemDetailed Visual Inspection of the Stow-switches (4104ks1,4104ks2,4104ks3,4104ks4)General Visual Inspection of Actuator Rod End Attachments (Blocker Doors Deployed)Detailed Visual Inspection of the electrical HarnessGeneral Visual Inspection of the Hydraulic Tubing and Hoses (Blocker Doors Deployed)Removal of the Hydraulic Control UnitInstallation of the Hydraulic Control UnitManual Deployment of the Blocker Door
(1) Do an operational test of the Trust reverser system (Ref. AMM TASK 78-31-00-710-042).
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4. Fault Isolation
_______________
A. If the test gives the maintenance message TR LOCK, TR ACT:
NOTE : If the Thrust Reverser is partially open when commanded to deploy,
____ the ECU triggers the "TR LOCK, TR ACT" maintenance message instead of "EIU, HCU" (due to 2 fault parameters inverted into the ECU software), carry out the following TSM procedure without take into account the components highlighted into the maintenance message.
- Do a general visual inspection of the TR hydraulic tubes (Ref. AMM TASK 78-31-49-210-002)
(1) If damage is found:
- repair or replace as necessary.
(2) If mothing is found:
- Perform a manual deployment of the blocker door (Ref. AMM TASK 78-32-41-860-001)
- Do a general visual inspection of blocker door actuator rod end attachments (Ref. AMM TASK 78-31-41-210-042)
(a) If damage is found:
- repair or replace as necessary.
(b) If nothing is found:
- Do a detailed visual inspection of the stow-switches (Ref. AMM TASK 78-31-18-210-001).
1 If damaged is found:
_ - repair or replace as necessary.
2 if nothing is found:
_
- Do a detailed visual inspection of the electrical harness (Ref. AMM TASK 78-31-42-210-041)
a If damage is found:
_
- repair or replace as necessary.
b if nothing is found:
_
- Replace the EIU (Ref. AMM TASK 73-25-34-000-040) (Ref. AMM TASK 73-25-34-400-040).
* If the fault continues, replace the HCU (4101KS) (Ref.
AMM TASK 78-31-51-000-042) (Ref. AMM TASK 78-31-51-400-042).
** If the fault continues, replace the ECU (4000KS) (Ref.
AMM TASK 73-21-60-000-001) (Ref. AMM TASK 73-21-60-400-001)
B. Do the test given in Para. 3.A.
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TASK 78-31-00-810-872
Partial deployment of the Thrust Reverser when commanded to deploy on ENG2
1. Possible Causes
_______________
- TR hydraulic tubes
- blocker door actuator
- stow-switches
- electrical harness
- EIU
- HCU (4101KS)
- ECU (4000KS)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-21-60-000-001
AMM 73-21-60-400-001
AMM 73-25-34-000-040
AMM 73-25-34-400-040
AMM 78-31-00-710-042
AMM 78-31-18-210-001
AMM 78-31-41-210-042
AMM 78-31-42-210-041
AMM 78-31-49-210-002
AMM 78-31-51-000-042
AMM 78-31-51-400-042
AMM 78-32-41-860-001
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) EXHAUST(56)
