Loss of the Accelerometer 4 Signal for the SEC 2

TASK 27-94-00-810-826-A
Loss of the Accelerometer 4 Signal for the SEC 2

1. Possible Causes

SEC-2 [1CE2]
ACCLRM-4 [12CE4]
wiring of the ANI 4-2 signal from the SEC 2 (1CE2) to the accelerometer 4 (12CE4)

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 27-94-00-740-056-A

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

4. Fault Isolation
Subtask 27-94-00-810-075-B

A. If the BITE test gives the maintenance message:
SEC2 OR WIRING FROM ACCLRM4 12CE4

(1) If the fault continues:

(2) If the fault continues:

do a check and repair the wiring of the ANI 4-2 signal from the SEC 2 (1CE2) to the accelerometer 4 (12CE4) SEC 2 COM part and MON part ASM 279224.

Subtask 27-94-00-740-057-A

B. Do the test given in Para. 3.

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