Removal of the FCDC

TASK 27-95-34-000-001-A
Removal of the FCDC

ZONE: 127
ZONE: 128
FIN: 3CE1
FIN: 3CE2

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
127	REAR AVIONIC COMPARTMENT
128	REAR AVIONIC COMPARTMENT
824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 31-32-00-860-006-A	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page
Flight Control Data Concentrator (FCDC)

3. Job Set-up
Subtask 27-95-34-810-050-A

A. Trouble Shooting Data
(1) You can print the Trouble Shooting Data (TSD) as follows:

get access to the SYSTEM/REPORT/TEST (Ref. AMM TASK 31-32-00-860-006).
on this page, push the line key adjacent to the EFCS1 and/or EFCS2 indication.
on this page, push the line key adjacent to the LAST LEG REPORT indication.
on this page, push the line key adjacent to the failure(s) to get the TROUBLE SHOOTING DATA page.
print the TROUBLE SHOOTING DATA page.

Subtask 27-95-34-865-050-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 3CE1 (FCDC1)
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B10
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B05
** ON A/C ALL
FOR FIN: 3CE2 (FCDC2)
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20

Subtask 27-95-34-010-050-A

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
(2) Open the access door 824.

4. Procedure
Subtask 27-95-34-020-050-A

A. Removal of the FCDC
(1) Loosen the nuts (4).
(2) Lower the nuts (4).
(3) Pull the FCDC (1) on its rack (3) to disconnect the electrical connectors (2).
(4) Remove the FCDC (1).
(5) Put CAP - BLANKING on the disconnected electrical connectors (2).

[Rev.10 from 2021] 2026.03.31 23:59:50 UTC