Failure of the Accelerometers 3 and 4

TASK 27-92-00-810-807-A
Failure of the Accelerometers 3 and 4

1. Possible Causes

ACCLRM-3 [12CE3]
ACCLRM-4 [12CE4]
wiring of the power supply signal from the accelerometer (12CE3) to the first terminal block
wiring of the power supply signal from the accelerometer (12CE4) to the first terminal block

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 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-92-00-740-058-A

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

4. Fault Isolation
Subtask 27-92-00-810-056-A

A. If the BITE test gives the maintenance messages:
ACCLRM 3 12CE3
ACCLRM 4 12CE4

replace the ACCLRM-3 [12CE3] and the ACCLRM-4 [12CE4] , AMM 27-92-16-000-001 and AMM 27-92-16-400-001.

(1) If the fault continues:

do a check and repair the wiring of the power supply signal from the accelerometer (12CE3) to the first terminal block and the wiring of the power supply signal from the accelerometer (12CE4) to the first terminal block, ASM 279224.

Subtask 27-92-00-740-059-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:54 UTC