B. Make sure that this(these) circuit breaker(s) is(are) closed:

 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
**ON A/C 001-049, 051-061, 101-105, 201-203,
 121VU ADIRS/ADIRU/2/28VDC 6FP2 N05
 **ON A/C ALL
 121VU FLIGHT CONTROLS/WTB/FLP/SYS2 12CV P20 121VU FLIGHT CONTROLS/WTB/SLT/SYS2 11CV P19 121VU EIS/SLIDES/ARM AND WARN/GND 13WN P10 121VU EIS/HORN/SPLY 2WC P09 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B 2WE1 Q44
R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 121VU ADIRS/ADIRU/2/28VDC 6FP2 N04
 **ON A/C ALL
 C. Do this test
 NOTE : Wait at least 15 minutes and do this BITE test of the BCL2.
____
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the center pedestal, on the  On the MCDU:
 MCDU:  - the BCL page comes into view.
 - push the line key adjacent to
 the BCL indication.
 2. On the MCDU:  On the MCDU, on the BCL/TEST page:
 - push the line key adjacent to  - if the TEST OK message comes into
 the TEST indication.  view, stop the trouble shooting,
 - if the CHECK HOT BUS 2 POWER
 CONSUMPTION message comes into view,
 continue the trouble shooting (refer
 to the paragraph that follows).

 D. Preparation of the Fault Isolation

 (1) Make sure that OFF/NAV/ATT selector switches on the ADIRS CDU are in the OFF position.

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

 (3) Release BAT1 and BAT2 pushbutton switches.

 (4) Make sure that the refuel/defuel control panel is closed.

 (5) Make sure that the circuit breakers shown in the figure are closed.

 (6) In the battery power center 105VU, install an ammeter as shown in the figure.

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message CHECK HOT BUS 2 POWER CONSUMPTION:
 - read the value of the discharge current in the BAT 2 box on the ELEC page of the lower ECAM display unit:
 NOTE : When you read the value of the discharge current, make sure that
____ the BAT 2 contactor is open (on the ELEC page of the lower ECAM display unit).
 (1) If the value of the discharge current is more than or equal to 1 ampere:

 - do a check of the current value with an ammeter (Ref. TASK 24-38-00-810-838).

 (2) If the value of the discharge current is less than 1 ampere:

 - replace the BAT-2 (2PB2), (Ref. AMM TASK 24-38-51-000-001) and (Ref. AMM TASK 24-38-51-400-001),

 - wait at least 15 minutes and do the BITE test of the BCL2 as given in Para. 4C.

 (a) If the BITE test gives the maintenance message CHECK HOT BUS 2 POWER CONSUMPTION:

 - replace the BCL-2 (1PB2), (Ref. AMM TASK 24-38-34-000-001) and (Ref. AMM TASK 24-38-34-400-001).

 (b) If the BITE test gives the maintenance message TEST OK:

 - make sure that after the subsequent flight, the maintenance message CHECK HOT BUS 1 POWER CONSUMPTION does not appear.
 1 If the maintenance message CHECK HOT BUS 2 POWER CONSUMPTION
_
 appear:

 - replace the BCL-2 (1PB2), (Ref. AMM TASK 24-38-34-000-001) and (Ref. AMM TASK 24-38-34-400-001).
 「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 ∞∞24-38-00∞∞∞∞∞∞∞∞∞∞Page 255
 Aug 01/00R CES

 B. Preparation for the test
 (1) Energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-861-002).

 C. Do this test to make sure that the system operates correctly
 NOTE : Wait at least 15 minutes and do this BITE test of the BCL2.
____
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ELEC panel 35VU:  On the ELEC panel 35VU:
 - push the BAT 2 pushbutton  - the OFF legend of the BAT 2 switch. pushbutton switch goes off.
 2. On the center pedestal, on the  On the MCDU:
 MCDU: - the BCL page comes into view.

 - push the line key adjacent to
 the BCL indication.

 3. On the MCDU:  On the MCDU, on the BCL/TEST page:
　
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