BITE Test of the BSCU - LRU Identification

TASK 32-46-00-740-003-A
BITE Test of the BSCU - LRU Identification

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-009-A	Procedure to Get Access to the SYSTEM REPORT/TEST/L/G Page

3. Job Set-up
Subtask 32-46-00-860-056-A

A. Aircraft Maintenance Configuration
(1) On the panel 400VU, make sure that the L/G normal control-lever is set to DOWN.
(2) On the panel 402VU, make sure that the A/SKID & NOSE WHEEL switch is at ON.
(3) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(4) On one MCDU, get the SYSTEM REPORT/TEST/L/G page (Ref. AMM TASK 31-32-00-860-009).

Subtask 32-46-00-941-056-A

B. Safety Precautions
(1) Put WARNING NOTICE(S) on the L/G normal control lever to tell persons not to move it.

Subtask 32-46-00-865-053-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY	4GG	M36
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/CTL	3GG	M35
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/CTL	1GG	M34
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY	2GG	M33

4. Procedure
Subtask 32-46-00-740-052-B

A. Do this test:

NOTE: This test is for CHAN/SYS 1. For CHAN/SYS 2, use the indications between parentheses.

ACTION	RESULT
1.On the MCDU, push the line key adjacent to the BSCU 1(2) indication.	the BSCU CHAN/SYS 1(2) page comes into view.
2.Push the line key adjacent to the LRU IDENT indication.	the BSCU CHAN/SYS 1(2)/LRU IDENTIFICATION page comes into view. This page gives: . the Part Number of the BSCU . the Serial Number of the BSCU . the pin programming reference (wheel diameter and type of brake).
3.Push the line key adjacent to the RETURN indication to get the SYSTEM REPORT/TEST/L/G page.

5. Close-up
Subtask 32-46-00-860-057-A

A. Put the aircraft back to its initial configuration.
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 00:50:13 UTC