Installation of the Cabin Assignment Module

TASK 23-73-19-400-001-A
Installation of the Cabin Assignment Module

FIN: 115RH ** ON A/C NOT FOR ALL

1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-740-005-A	BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS
TASK 23-73-00-860-002-A	Cabin Layout Selection
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
Cabin Assignment Module (115RH) - Removal/Installation

3. Job Set-up
Subtask 23-73-19-861-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)

Subtask 23-73-19-865-051-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
49VU	COM/CIDS/DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DIR ESS/1	150RH	G01
** ON A/C NOT FOR ALL
49VU	COM DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M07
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M06
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
121VU	COM/CIDS/DIR 2/BAT	146RH	P14
121VU	COM/CIDS/DIR 1/BAT	147RH	P13
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M08
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M07
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06

4. Procedure
Subtask 23-73-19-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Cabin Assignment Module (CAM)
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the CAM (1).
(4) Lock the quick-release fasteners (2).
(5) Make sure that the work area is clean and clear of tools and other items.

Subtask 23-73-19-865-053-A ** ON A/C NOT FOR ALL

B. Remove the safety clips and tags and close these circuit breakers in this sequence:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M08
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M07
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M07
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M06
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
49VU	COM/CIDS/DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
49VU	COM DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DIR ESS/1	150RH	G01
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DIR 1/BAT	147RH	P13
121VU	COM/CIDS/DIR 2/BAT	146RH	P14

Subtask 23-73-19-869-051-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).

Subtask 23-73-19-740-050-A ** ON A/C NOT FOR ALL

D. Do the BITE-test of the Cabin Intercommunication Data System (CIDS).
(Ref. AMM TASK 23-73-00-740-005)

5. Close-up
Subtask 23-73-19-860-051-A ** ON A/C NOT FOR ALL

A. Make sure that the required cabin layout is selected in the CAM.
(Ref. AMM TASK 23-73-00-860-002)

Subtask 23-73-19-862-050-A ** ON A/C NOT FOR ALL

B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)

[Rev.10 from 2021] 2026.03.31 23:17:58 UTC