R  1_  If the wiring is not correct:
R  - repair it. 
R  2_  If the wiring is correct:
R  - replace the C/B-ELEC/GEN2/OFF/BTC2 SPLY (8XU). 
R  **ON A/C ALL
 C. Test

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ELEC panel 35VU:  On the ELEC panel 35VU:
 - release the GEN 1 pushbutton  - the OFF legend of the GEN 1
 switch (3XU1).  pushbutton switch (3XU1) comes on.
 2. On the ECAM control panel:  On the lower ECAM display unit:
 - push the ELEC key to get the  - the GEN 2 supplies the AC 2 and AC 1
 ELEC page.  busbars.

 D. Put the aircraft back to its initial configuration.
 (1) Stop the engine 2 (Ref. AMM TASK 71-00-00-710-028).

 (2) Do the EIS stop procedure
 (Ref. AMM TASK 31-60-00-860-002).

 (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.

 (4) De-energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-862-002).

 TASK 24-50-00-810-816

 Failure of the AC BUS 2 with the GEN 1 in Operation
 1. Possible Causes
_______________
 - BTC-2 (11XU2)

 - GCU-2 (1XU2)

 - RELAY-GLC 2 AUX CTL (4XU2)

 - GLC-2 (9XU2)

 - RELAY-SMOKE (30XU2)

 - BTC-1 (11XU1)

 - GCU-1 (1XU1)

 - RELAY-EPC AUX CTL (5XG)

 - RELAY-GLC 1 AUX CTL (4XU1)

 - GLC-1 (9XU1)

 - RELAY-BUS TIE (30XU1)

 - wiring

 - C/B-ELEC/GEN2/OFF/BTC2 SPLY (8XU)

 - C/B-ELEC/GEN1/OFF/BTC1 SPLY (5XU)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-22-55-000-001 Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
 AMM 24-22-55-400-002 Installation of the Contactors (9XU1, 9XU2, 11XU1,

 11XU2) AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power
 AMM 31-60-00-860-001 EIS Start Procedure
 AMM 31-60-00-860-002 EIS Stop Procedure
 AMM 71-00-00-710-003 Engine Automatic Start
 AMM 71-00-00-710-028 Engine Shutdown
 ASM 24-22/02
 ASM 24-22/03
 ASM 24-23/02

 「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 ∞∞24-50-00∞∞∞∞∞∞∞∞∞∞Page 255
 Aug 01/05R CES

 3. Fault Confirmation
__________________
 A. Job Set-up
 (1) Aircraft Maintenance Configuration
 (a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

 (b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).

 (c) Start the engine 1 (Ref. AMM TASK 71-00-00-710-003).

 B. Test
 (1) Do this test:
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ELEC panel 35VU:  On the ELEC panel 35VU:
 - release the GEN 2 pushbutton  - the OFF legend of the GEN 2 switch (3XU2) pushbutton switch (3XU2) comes on.
 On the upper ECAM display unit:
 - the ELEC AC BUS 2 FAULT warning come into view.
 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the test confirms the fault:
 - do a check of the status of the ELEC/GEN2 OFF/BTC2 SPLY circuit breaker (8XU).
 (1) If the circuit breaker is closed:
 - replace the BTC-2 (11XU2) (Ref. AMM TASK 24-22-55-000-001) and (Ref. AMM TASK 24-22-55-400-002).
 (a) If the fault continues:
 - do a check and repair the wiring between the pin B/5 of the BTC2 (11XU2) and the pin AA/9C of the GCU2 (1XU2) (Ref. ASM 24-22/03).
 1 If the fault continues:
_
 - replace the GCU-2 (1XU2) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
　
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