Failure of the Cooling System of the EWD DU
1. Possible Causes
_______________
- avionics ventilation system
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 31-60-00-740-004 EIS System Test
3. Fault Confirmation
__________________
A. Test
Do the EIS system test (Ref. AMM TASK 31-60-00-740-004).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DU EWD(4WT1)/COOLING:
- do the operational test of the avionics equipment ventilation (Ref. AMM TASK 21-26-00-710-001)
(1) If the avionics ventilation system does not operate correctly:
- do the related trouble shooting (Ref. TSM chapter 21)
(2) If the avionics ventilation system operates correctly:
- do a visual check of the cooling air inlet and outlet of the EWD DU
(a) If you find damage, repair it.
5. Close-up
________
A. Do the test given in Para. 3.A.
Failure of the Cooling System of the SD DU
1. Possible Causes
_______________
- avionics ventilation system
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 31-60-00-740-004 EIS System Test
3. Fault Confirmation
__________________
A. Test
Do the EIS system test (Ref. AMM TASK 31-60-00-740-004).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DU SD(4WT2)/COOLING:
- do the operational test of the avionics equipment ventilation (Ref. AMM TASK 21-26-00-710-001)
(1) If the avionics ventilation system does not operate correctly:
- do the related trouble shooting (Ref. TSM chapter 21)
(2) If the avionics ventilation system operates correctly:
- do a visual check of the cooling air inlet and outlet of the SD DU
(a) If you find damage, repair it.
5. Close-up
________
A. Do the test given in Para. 3.A.
Failure of the DMC1 Cooling System
1. Possible Causes
_______________
- avionics ventilation system
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 31-60-00-740-004 EIS System Test
3. Fault Confirmation
__________________
A. Test
Do the EIS system test (Ref. AMM TASK 31-60-00-740-004).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DMC1(1WT1)/COOLING
- do the operational test of the avionics equipment ventilation (Ref. AMM TASK 21-26-00-710-001)
(1) If the avionics ventilation system does not operate correctly:
- do the related trouble shooting (Ref. TSM chapter 21)
(2) If the avionics ventilation system operates correctly:
- do a visual check of the cooling air openings of the DMC 1
(a) If you find damage, repair it.
5. Close-up
________
A. Do the test given in Para. 3.A.
Failure of the DMC2 Cooling System
1. Possible Causes
_______________
- avionics ventilation system
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 31-60-00-740-004 EIS System Test
3. Fault Confirmation
__________________
A. Test
Do the EIS system test (Ref. AMM TASK 31-60-00-740-004).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 2(116)
