Loss of the L Yellow Brake Pressure-Transducer Input of the SDAC 1 and SDAC 2

TASK 31-54-00-810-819-A
Loss of the L Yellow Brake Pressure-Transducer Input of the SDAC 1 and SDAC 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 31-50-00-710-001	Ground Scanning of the Central Warning System
AWM 315470

3. Fault Confirmation
Subtask 31-54-00-865-058-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	L/G/Y BRK/PRESS/IND	61GG	C10
** ON A/C NOT FOR ALL
49VU	ABCU &/Y BRK/PRESS IND	61GG	C10

Subtask 31-54-00-710-074-A

B. Test
Do the ground scanning of the central warning systems AMM 31-50-00-710-001.

4. Fault Isolation
Subtask 31-54-00-810-068-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message SDAC1 : LH Y BRK PRESS XDCR 63GG:

do a check and repair the wiring from the SDAC 1 (1WV1) pins AB/13C, 13D to the first terminal block , AWM 315470.

Subtask 31-54-00-810-068-B ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message SDAC1 : LH Y BRK PRESS XDCR 101GG:

do a check and repair the wiring from the SDAC 1 (1WV1) pins AB/13C, 13D to the first terminal block , AWM 315470.

Subtask 31-54-00-710-075-A

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

[Rev.8 from Aug 2018] 2026.04.04 04:30:24 UTC