Loss of the FCDC 2 BUS 5 Signal for the ELAC 2

TASK 27-93-00-810-915-A
Loss of the FCDC 2 BUS 5 Signal for the ELAC 2

1. Possible Causes

ELAC-2 [2CE2]
FCDC-2 [3CE2]
wiring of the DGI 12 signal from the ELAC 2 (2CE2) COM part to the FCDC 2 (3CE2)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-93-34-000-001	Removal of the ELAC
AMM 27-93-34-400-001	Installation of the ELAC
ASM 279503
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 27-93-00-740-158-A

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

4. Fault Isolation
Subtask 27-93-00-810-153-A

A. If the BITE test gives the maintenance message:
ELAC2 MON OR BUS5 FROM FCDC2

(1) If the fault continues:

(2) If the fault continues:

do a check and repair the wiring of the DGI 12 signal from the ELAC 2 (2CE2) COM part to the FCDC 2 (3CE2) ASM 279503.

Subtask 27-93-00-740-159-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:28:05 UTC