Loss of the ELAC Functions by the FAC 2

TASK 22-66-00-810-867-A
Loss of the ELAC Functions by the FAC 2

1. Possible Causes

wiring of the ELAC OWN bus from the FAC 2 (1CC2) to the ELAC 2 (2CE2)
wiring of the ELAC OPP bus from the FAC 2 (1CC2) to the ELAC 1 (2CE1)
wiring of the ELAC OWN HLTY MON discrete from the FAC 2 (1CC2) to the ELAC 2 (2CE2)
wiring of the ELAC OWN HLTY COM discrete from the FAC 2 (1CC2) to the ELAC 1 (2CE1)

2. Job Set-up Information
A. Referenced Information

3. Fault Confirmation
Subtask 22-66-00-710-177-A

A. Test
(1) Do the Ground Scanning of the AFS AMM 22-91-00-710-001.

4. Fault Isolation
Subtask 22-66-00-810-137-A

A. If the test gives the maintenance message AFS: CHK FAC2-ELAC 1/2 WRG:

do a check of the wiring of the ELAC OWN bus from the FAC 2 (1CC2) to the ELAC 2 (2CE2)
do a check of the wiring of the ELAC OPP bus from the FAC 2 (1CC2) to the ELAC 1 (2CE1)
ASM 226901.

(1) If there is no continuity:

(2) If there is continuity:

do a check of the wiring of the ELAC OWN HLTY MON discrete from the FAC 2 (1CC2) to the ELAC 2 (2CE2)
do a check of the wiring of the ELAC OWN HLTY COM discrete from the FAC 2 (1CC2) to the ELAC 1 (2CE1)
ASM 226801.

(a) If there is no continuity:

(b) If there is continuity:

do the operational test of the AFS AMM 22-96-00-710-001, and refer to the procedure related to the message that the test gave.

Subtask 22-66-00-710-178-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:21 UTC