Loss of the SFCC 1 Signal for the ELAC 2

TASK 27-93-00-810-892-A
Loss of the SFCC 1 Signal for the ELAC 2

1. Possible Causes

ELAC-2 [2CE2]
wiring of the DGI 11 signal from the ELAC 2 (2CE2) to the first terminal block
wiring of the SLATS RETRACTED (DSI 26) signal from the ELAC 2 (2CE2) to the SFCC 1 (21CV)
wiring of the GND signal (pin 9H) from the SFCC 1 (21CV) to the ground

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 27-51-00-810-839-A	EFCS Identifies a Loss of Data from the SFCC-1 (2)
ASM 279242
ASM 279252
AMM 27-93-34-000-001	Removal of the ELAC
AMM 27-93-34-400-001	Installation of the ELAC
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-93-00-740-126-A

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

4. Fault Isolation
Subtask 27-93-00-810-137-B

A. If the BITE test gives the maintenance message:
ELAC2 OR WIRING FROM SFCC1

replace the ELAC-2 [2CE2] AMM 27-93-34-000-001 and AMM 27-93-34-400-001.

(1) If the fault continues:
(a) Do a check and repair the wiring of the DGI 11 signal from the ELAC 2 (2CE2) to the first terminal block, COM part only ASM 279252.
(b) Do a check and repair the wiring of the SLATS RETRACTED (DSI 26) signal from the ELAC 2 (2CE2) to the SFCC 1 (21CV) ASM 279242.
(c) Do a check and repair the wiring of the GND signal (pin 9H) from the SFCC 1 (21CV) to the ground ASM 279242.
(d) Do this trouble shooting procedure (Ref. TSM TASK 27-51-00-810-839).

Subtask 27-93-00-740-127-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:28:02 UTC