Installation of the Seat Row Call/Numbering Light

TASK 23-73-14-400-006-A
Installation of the Seat Row Call/Numbering Light

FIN: 505RH ** ON A/C NOT FOR ALL
FIN: 506RH ** 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 23-73-00-861-001-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)
Seat Row Call/Numbering Light

3. Job Set-up
Subtask 23-73-14-861-057-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).

Subtask 23-73-14-865-066-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/DEU A ESS/LINE 2	155RH	G05
49VU	COM/CIDS/DEU A ESS/LINE 1	154RH	G04
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M14
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M11
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09

4. Procedure

NOTE: If the Seatrow Call/Numbering Light is equipped with LED technologie, install the complete Printed Circuit Board (Ref. AMM 23-73-49 Board - Printed Circuit).

Subtask 23-73-14-420-055-A ** ON A/C NOT FOR ALL

A. Installation of the seatrow call/numbering light
(1) Install the seatrow call/numbering light (2).
(2) Put the switch panel cover (4) in position on the PSIU. Move it carefully in the opposite arrow direction until the lugs (5) engage into the recesses of the PSIU. Push the switch panel cover (4) up until the lug (3) engages into the recess (1) of the PSIU.

NOTE: Make sure that the switch panel cover (4) is correctly attached.

Subtask 23-73-14-865-067-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/DEU A NORM/R AFT	168RH	M14
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M11
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09
49VU	COM/CIDS/DEU A ESS/LINE 2	155RH	G05
49VU	COM/CIDS/DEU A ESS/LINE 1	154RH	G04

Subtask 23-73-14-869-052-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).
(2) Do the BITE test of the CIDS through the CFDS (Ref. AMM TASK 23-73-00-740-005).

Subtask 23-73-14-710-055-A ** ON A/C NOT FOR ALL

D. Do this test.

ACTION	RESULT
1.In the cabin:
Close all passenger/crew doors.
2.In the cabin:	In the cabin:
Open a passenger/crew door.	All seatrow call/numbering lights come on.
3.On the Programming and Test Panel (PTP) 110RH:	On the PTP 110RH:
Push the DISPL ON membrane switch.	the CIDS menu page comes on.
Push the SYSTEM TEST related membrane switch.	The SYSTEM TEST page comes on.
Push the CONT related membrane switch until PAX CALL LAMPS comes on.
Push the PAX CALL LAMPS related membrane switch.	The PAX CALL LAMPS test page comes on with the flashing message: WAIT FOR RESPONSE.
	After not many seconds the WAIT FOR RESPONSE message changes to: ATA 23-73-14 TEST OK.

5. Close-up
Subtask 23-73-14-862-055-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.02 06:12:30 UTC