Loss of the Accelerometer 1 Signal for the SEC 1

TASK 27-94-00-810-823-A
Loss of the Accelerometer 1 Signal for the SEC 1

1. Possible Causes

SEC-1 [1CE1]
ACCLRM-1 [12CE1]
wiring of the ANI 4-1 signal from the SEC 1 (1CE1) to the accelerometer 1 (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 27-94-34-000-001	Removal of the SEC
AMM 27-94-34-400-001	Installation of the SEC
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-94-00-740-050-A

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

4. Fault Isolation

NOTE: If the circuit breakers 15CE1 and 16CE1 are open for the aircraft dispatchin MMEL conditions (ELAC1 deactivated), it is not necessary to do the trouble-shooting procedure.

Subtask 27-94-00-810-072-B

A. If the BITE test gives the maintenance message:
SEC1 OR WIRING FROM ACCLRM1 12CE1

replace the SEC-1 [1CE1] , AMM 27-94-34-000-001 and AMM 27-94-34-400-001.

(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 SEC 1 (1CE1) to the accelerometer 1 (12CE1) SEC 1 COM part and MON part ASM 279224.

Subtask 27-94-00-740-051-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:28:13 UTC