Loss of the FCDC DGI 10 Bus

TASK 27-92-00-810-835-A
Loss of the FCDC DGI 10 Bus

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-95-34-000-001	Removal of the FCDC
AMM 27-95-34-400-001	Installation of the FCDC
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-92-00-740-116-A ** ON A/C NOT FOR ALL

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

4. Fault Isolation
Subtask 27-92-00-810-091-A ** ON A/C NOT FOR ALL

A. If the test confirm the fault:

replace the FCDC (3CE1 or 3CE2) related to the maintenance message AMM 27-95-34-000-001 and AMM 27-95-34-400-001.

(1) If the fault continues:

do a check of the wiring of the DGI 10 signal from the FCDC to the first terminal block related to the maintenance message.

Subtask 27-92-00-740-117-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:55 UTC