Installation of the System Controller

TASK 23-72-31-400-001-A
Installation of the System Controller

FIN: 9RA ** ON A/C NOT FOR ALL

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 3M (10 FT)- ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
811, 824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 23-72-00-710-001-A	Operational Test of the Anti-Hijack Camera-Monitoring-System
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access
System Controller

3. Job Set-up
Subtask 23-72-31-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001)
(2) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the access door 811 or 824.
(3) Make sure that the access door 811 or 824 is open (Ref. AMM TASK 52-41-00-010-002).

Subtask 23-72-31-865-051-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	DOORS/CKPT/VIDEO/SPLY	15RA	T16

4. Procedure
Subtask 23-72-31-210-050-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that all the placards of the retained/new components are in the correct position and in good condition.

Subtask 23-72-31-420-050-A ** ON A/C NOT FOR ALL

B. Installation of the System Controller

System Controller ** ON A/C NOT FOR ALL

(1) Remove the blanking caps from the electrical connectors.
(2) Make sure that the electrical connectors are clean and in the correct condition.
(3) Install the system controller (1) on its rack (2).
(4) Push the system controller (1) on its rack (2) to connect the electrical connectors at the rear.
(5) Engage the nut (3) on the catch (4) and tighten it.

Subtask 23-72-31-865-052-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	DOORS/CKPT/VIDEO/SPLY	15RA	T16

Subtask 23-72-31-710-050-A ** ON A/C NOT FOR ALL

D. Do the operational test of the CDSS (Ref. AMM TASK 23-72-00-710-001).

5. Close-up
Subtask 23-72-31-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 811 or 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).

Subtask 23-72-31-862-050-A ** ON A/C NOT FOR ALL

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.02 06:45:57 UTC