Loss of the ELAC 2 BUS 2 Signal for the FCDC 2

TASK 27-95-00-810-807-A
Loss of the ELAC 2 BUS 2 Signal for the FCDC 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 279252
AMM 27-95-34-000-001	Removal of the FCDC
AMM 27-95-34-400-001	Installation of the FCDC
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-95-00-740-056-A

A. Test
(1) Do the BITE test of the EFCS (ground scanning) AMM 27-96-00-740-001.

4. Fault Isolation
Subtask 27-95-00-810-053-A

A. If the BITE test gives the maintenance message:
FCDC2 OR BUS2 FROM ELAC2 COM
or
FCDC2 OR BUS2 FROM ELAC2 MON

(1) If the fault continues:

do a check and repair the wiring of the DGI 1/2 signal from the FCDC2 (3CE2) to the first terminal block ASM 279252 if the maintenance message is FCDC2 OR BUS2 FROM ELAC2 COM
or
do a check and repair the wiring of the DGI 1/4 signal from the FCDC2 (3CE2) to the first terminal block ASM 279252 if the maintenance message is FCDC2 OR BUS2 FROM ELAC2 MON.

Subtask 27-95-00-740-057-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:28:23 UTC