Loss of the Roll Signal on the F/O Side Stick for the ELAC 1 (New-Generation Side-Stick Unit)

TASK 27-93-00-810-969-A
Loss of the Roll Signal on the F/O Side Stick for the ELAC 1 (New-Generation Side-Stick Unit)

NOTE: This task is applicable only for the new-generation side-stick unit.

1. Possible Causes

SSU-F/O (100CE2)
ELAC-1 [2CE1]
wiring from the ELAC 1 (2CE1) to the SSU-F/O (100CE2)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 279212
AMM 27-92-41-000-802	Removal of the New-Generation Side-Stick Unit
AMM 27-92-41-400-802	Installation of the New-Generation Side-Stick Unit
AMM 27-93-34-000-001	Removal of the ELAC
AMM 27-93-34-400-001	Installation of the ELAC
AMM 27-96-00-710-020	Operational Test of the Side Stick Assembly (Activation for the BITE Test)
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-93-00-700-190-A

A. Test
(1) Do the operational test of the side stick unit (activation for the BITE test) AMM 27-96-00-710-020.
(2) Do the BITE test of the EFCS (Ground Scanning) AMM 27-96-00-740-001.

4. Fault Isolation
Subtask 27-93-00-810-249-A

A. If the BITE test gives the maintenance message:
ELAC1 OR INPUT OF F/O ROLL CTL SSTU 4CE2

replace the SSU-F/O (100CE2), AMM 27-92-41-000-802 and AMM 27-92-41-400-802.

(1) If the fault continues:

replace the ELAC-1 [2CE1] , AMM 27-93-34-000-001 and AMM 27-93-34-400-001.

(2) If the fault continues:

do a check and repair the wiring from the ELAC 1 (2CE1) to the SSU-F/O (100CE2) ASM 279212.

Subtask 27-93-00-700-191-A

B. Do the operational test and the BITE test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:28:09 UTC