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

R (2) On the ELEC panel 35VU:
R - push, release and push again the GEN 1 pushbutton switch (3XU1).

R (3) Do the operational test of the GAPCU (Ref. AMM TASK 24-41-00-740-R 002).

R (4) Start the engine 1 (Ref. AMM TASK 71-00-00-710-003).

R (5) Do this test:

R -------------------------------------------------------------------------------R ACTION RESULT
R -------------------------------------------------------------------------------
R On the ECAM control panel: On the lower ECAM DU:
R - get the ELEC page. - the correct electrical parameters of
R the GEN 1 are shown and the AC1
R busbar is supplied by the GEN 1.

R 5. Close-up

________ R A. Put the aircraft back to its initial configuration. R (1) Stop the engine 1 (Ref. AMM TASK 71-00-00-710-028). R (2) Do the EIS stop procedure
R (Ref. AMM TASK 31-60-00-860-002).
R (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY R potentiometers to OFF. R (4) De-energize the aircraft electrical circuits
R (Ref. AMM TASK 24-41-00-862-002).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 401-499, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page A250
 Aug 01/05 CESR TASK 24-20-00-810-863 R Failure of the Generator 2 Channel R 1. Possible Causes

_______________
R - GLC-2 (9XU2) R - BTC-2 (11XU2) R - feeders
R 2. Job Set-up Information
______________________ R A. Fixtures, Tools, Test and Support Equipment R -------------------------------------------------------------------------------
R REFERENCE QTY DESIGNATION R -------------------------------------------------------------------------------R No specific circuit breaker(s) safety clip(s)
R B. Referenced Information R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-55-000-001 R AMM 24-22-55-400-002 R R AMM 24-41-00-740-002 R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R R AMM 31-60-00-860-001 R AMM 31-60-00-860-002 R AMM 71-00-00-710-003 R AMM 71-00-00-710-028 R ASM 24-22/01 R ASM 24-23/03
R 3. Fault Confirmation
__________________
R A. Job Set-Up Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2) Installation of the Contactors (9XU1, 9XU2, 11XU1, 11XU2) Operational Check of GAPCU via CFDS Energize the Aircraft Electrical Circuits from the External Power De-energize the Aircraft Electrical Circuits Supplied from the External Power EIS Start Procedure EIS Stop Procedure Engine Automatic Start Engine Shutdown
R (1) Make sure that the aircraft electrical circuits are de-energized. R (2) Do not start the engines.

R B. Open, safety and tag this(these) circuit breaker(s):

R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------R 123VU TR2/214XP/SPLY 2PU2 AB04
R 123VU BUS 2/204XP/SPLY 3XN2 AB02
R 123VU BUS 2/231XP-A/SPLY 5XN2 AB01
R 123VU AC ESS/BUS ON/BUS 2 2XC AC01
R 123VU BUS 2/212XP/SPLY 10XN AD03
R 123VU BUS 2/202XP/SPLY 1XN2 AD02
R 123VU AVNCS VENT/EXTC/FAN 2HQ AE02
R 123VU ANTI ICE/R/WHSLD 1DG2 AF03
R 123VU BUS 2/210XP/SPLY 7XN2 AF02

R C. Test
R Not applicable.

R NOTE : As the GEN 2 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 DELTA CURRENT GEN2 R CHANNEL or OVERCURRENT GEN2 CHANNEL and the upper ECAM-DU warnings GEN 2 R FAULT and AC BUS 2 FAULT: R - do a check of the feeders (Ref. ASM 24-22/01) for a short circuit or a R short to ground between:
R . pin L1 of the Current Transformer Assembly (CTA) (51XU2) and terminal R D of the GLC 2 (9XU2)

R . pin L2 of the CTA and terminal E of the GLC 2

R . pin L3 of the CTA and terminal F of the GLC 2.

R (1) If the feeders are not correct:
R - repair or replace the feeders as necessary.

R (2) If the feeders are correct:
R - do a check of the power distribution feeders (Ref. ASM 24-23/03)
R for a short circuit or a short to ground between:

R . terminals G, H and J of the GLC 2 and the primary circuit R breakers of bus 1XP

R . terminal M of the GLC 2 and terminal D of the BTC 2

R . terminal L of the GLC 2 and terminal E of the BTC 2

R . terminal K of the GLC 2 and terminal F of the BTC 2

R . terminals R, P and N of the GLC 2 and the lightning strike R protection module (19XU2).
　
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