R TASK 24-23-00-810-817
R Failure of the ELEC/APU GEN Pushbutton Switch R 1. Possible Causes
_______________ R - P/BSW-ELEC/APU GEN (2XS) R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R
R 3. Fault Confirmation
__________________
R A. Test
R Not applicable.
Energize the Aircraft Electrical Circuits from the APU De-energize the Aircraft Electrical Circuits Supplied from the APU
R NOTE : As the APU GEN was set to OFF because of a true failure, the fault
____ R confirmation is not necessary.
R 4. Fault Isolation
_______________
R A. If the fault symptom is identified by the CFDS message PB SW ELEC GEN APU
R (2XS) and the upper ECAM-DU warning APU GEN FAULT:
R - replace the P/BSW-ELEC/APU GEN (2XS) on the ELEC panel 35VU.
R B. Make sure that the aircraft electrical circuits operate correctly in APU
R configuration.
R (1) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK
R 24-41-00-861-002).
R (2) Let the APU generator operate for five minutes to make sure that it
R operates correctly.
R (3) De-energize the aircraft electrical circuits from the APU (Ref. AMM
R TASK 24-41-00-862-002).
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Aug 01/05 CES
R TASK 24-23-00-810-818
R Failure of the Control Circuit of the APU GLC
R 1. Possible Causes_______________
R - GAPCU (24XG)
R - RELAY-APU GLC AUX CTL (4XS)
R - GLC-APU (3XS)
R - RELAY-EPC AUX CTL (5XG)
R - GLC-1 (9XU1)
R - GLC-2 (9XU2)
R - BTC-1 (11XU1)
R - BTC-2 (11XU2)
R - wiring
R 2. Job Set-up Information______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-55-000-001 R AMM 24-22-55-400-002 R R AMM 24-23-55-000-001 R AMM 24-23-55-400-001 R AMM 24-41-00-740-002 R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R ASM 24-23/02
R 3. Fault Confirmation
__________________
R A. Test
Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
Installation of the Contactors (9XU1, 9XU2, 11XU1,
11XU2)
Removal of the APU GLC (3XS)
Installation of the APU GLC (3XS)
Operational Check of GAPCU via CFDS
Removal of the Ground Auxiliary Power Control Unit
(GAPCU) (24XG)
Installation of the Ground Auxiliary Power Control
Unit (GAPCU) (24XG)
R (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
R (a) If the BITE test gives the message TEST FAILED: R - do the trouble shooting given in Para 4.A.
R (b) If the BITE test gives the message TEST PASSED: R - do the trouble shooting given in Para 4.B.
R 4. Fault Isolation
_______________
R A. If the BITE test gives the message TEST FAILED:
R - push the line key adjacent to the TEST FAILED message.
R (1) If the maintenance message GAPCU (24XG) comes into view:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref.
R AMM TASK 24-41-34-400-001).
R B. If the BITE test gives the message TEST PASSED:
R - do a check of the coil of the APU GLC auxiliary control relay (4XS) for
R correct electrical continuity between pin X1 and pin X2 (Ref. ASM 24-R 23/02).
R (1) If there is no continuity:
R - replace the RELAY-APU GLC AUX CTL (4XS).
R (2) If there is continuity:
R - do a check of the coil of the APU GLC (3XS) for correct electrical
R continuity between pin B3 and pin B5 (Ref. ASM 24-23/02).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 電源 3(19)
