Loss of the ACCELEROMETER Input of the SDAC 1

TASK 31-54-00-810-892-A
Loss of the ACCELEROMETER Input of the SDAC 1

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
ASM 315402
AMM 31-55-34-000-001	Removal of the SDAC
AMM 31-55-34-400-001	Installation of the SDAC

3. Fault Confirmation
Subtask 31-54-00-865-120-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	RCDR/ACCLRM	9TU	K18

Subtask 31-54-00-710-220-A

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

4. Fault Isolation
Subtask 31-54-00-810-141-A

A. If the test gives the maintenance message SDAC1 : ACCELEROMETER 6TU:

(1) If the fault continues:

do a check of the wiring from the SDAC 1 (1WV1) pins AE/11E, 11F to the first terminal block

(a) If there is no continuity:

(b) If there is continuity:

do a check of the wiring from the SDAC 1 (1WV1) pins AE/11G, 11H to the first terminal block

1 If there is no continuity:

2 If there is continuity:

do a check and repair the wiring from the SDAC 1 (1WV1) pins AB/11C, 11D to the first terminal block , ASM 315402.

Subtask 31-54-00-710-221-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:30:29 UTC