Loss of the BSCU BUS 2 Output Detected by the SDAC1

TASK 32-42-00-810-869-A
Loss of the BSCU BUS 2 Output Detected by the SDAC1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 31-50-00-710-002	Operational Test of the Flight Warning Computer (FWC)
AMM 32-42-34-000-001	Removal of the Braking/Steering Control Unit (BSCU)
AMM 32-42-34-400-001	Installation of the Braking/Steering Control Unit (BSCU)
ASM 324601

3. Fault Confirmation
Subtask 32-42-00-710-070-A

A. Test
Do the operational test of the Flight Warning Computer AMM 31-50-00-710-002.

4. Fault Isolation
Subtask 32-42-00-810-124-A

A. If the test gives the maintenance message SDAC1 : NO DATA FROM BSCU1:

(1) If the fault continues:

do a check and repair the wiring from the BSCU pins AA/6E, 6F to the first terminal block ASM 324601.

Subtask 32-42-00-710-071-A

B. Test
Do the test given in Para.3.

[Rev.8 from Aug 2018] 2026.04.04 04:31:36 UTC