Loss of the Accelerometer 1 Signal for the ELAC 1

TASK 27-93-00-810-815-A
Loss of the Accelerometer 1 Signal for the ELAC 1

1. Possible Causes

ELAC-1 [2CE1]
ACCLRM-1 [12CE1]
wiring of the ANI 4-1 signal from the ELAC 1 (2CE1) to the accelerometer (12CE1)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-92-16-000-001	Removal of the Flight Control Accelerometer
AMM 27-92-16-400-001	Installation of the Flight Control Accelerometer
ASM 279224
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 27-93-00-740-050-A

A. Test
(1) Do the BITE test of the EFCS (ground scanning) AMM 27-96-00-740-001.
(a) If the test gives a maintenance message, do the step 4. Fault Isolation.
(b) If there is no maintenance message:
1 No other maintenance action is necessary.
2 If the fault history report shows that the same failure occurred more than three times, replace the ELAC-1 [2CE1] .

4. Fault Isolation
Subtask 27-93-00-810-064-A

A. If the BITE test gives the maintenance message:
ELAC1 COM OR WIRING FROM ACCLRM1 12CE1
or
ELAC1 MON OR WIRING FROM ACCLRM1 12CE1

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

(1) If the fault continues:

replace the ACCLRM-1 [12CE1] , AMM 27-92-16-000-001 and AMM 27-92-16-400-001.

(2) If the fault continues:

do a check and repair the wiring of the ANI 4-1 signal from the ELAC 1 (2CE1) to the accelerometer (12CE1) ELAC 1 COM part or MON part as shown in the maintenance message ASM 279224.

Subtask 27-93-00-740-051-A

B. Do the test given in Para.3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:56 UTC