Installation of the Ballast Unit, the Lampholder and the Fluorescent Tube

TASK 33-21-11-400-001-A
Installation of the Ballast Unit, the Lampholder and the Fluorescent Tube

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

REFERENCE	QTY	DESIGNATION
No specific	AR	TIE WRAP(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-72-00-710-001-A	Operational Test of the Anti-Hijack Camera-Monitoring-System
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)
TASK 25-23-41-400-001-A	Installation of the Ceiling Panels
TASK 25-23-42-400-001-A	Installation of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-400-002-A	Installation of the Ceiling Panels - Aft Utility Area
TASK 25-23-48-400-001-A	Installation of the Cove Light Panel
TASK 33-21-00-710-001-A	Operational Test of the General Illumination
TASK 33-51-00-710-001-A	Operational Check of Emergency Power Supply Units by BITE-Check

3. Job Set-up
Subtask 33-21-11-860-058-A ** ON A/C NOT FOR ALL

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

Subtask 33-21-11-865-051-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
2000VU	CAB LIGHT PWR-CEILING-AFT	307LG	H08
2000VU	CAB LIGHT PWR-CEILING-AFT	304LG	H07
2000VU	CAB LIGHT PWR-CEILING-FWD	306LG	H06
2000VU	CAB LIGHT PWR-CEILING-FWD	305LG	H05
2000VU	CAB LIGHT PWR-WINDOW-AFT	302LG	H04
2000VU	CAB LIGHT PWR-WINDOW-AFT	301LG	H03
2000VU	CAB LIGHT PWR-WINDOW-FWD	303LG	H02
2000VU	CAB LIGHT PWR-WINDOW-FWD	300LG	H01
2000VU	LIGHT-CABIN-ENTRY	308LG	J02

4. Procedure
Subtask 33-21-11-910-051-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Clean the component interfaces and the adjacent area.

Subtask 33-21-11-420-050-A ** ON A/C NOT FOR ALL

B. Installation of the Ballast Unit with Lampholder and the Tube
(1) Installation of the ceiling and the entrance ballast unit and lampholder
(a) Install the ceiling and the entrance ballast unit and lampholder (6) to the fuselage structure with the washers (7) and the screws (8).
(b) Remove the CAP-BLANKING from each electrical connector and receptacle.
(c) Connect the electrical connector (3).
(2) Installation of the window ballast unit and lampholder
(a) Install the window ballast unit and lampholder (6) to the fuselage structure with the washers (4) and the screws (5).
(b) Remove the CAP-BLANKING from each electrical connector and receptacle.
(c) Connect the electrical connector (3).
(3) Installation of the tube
(a) Install the fluorescent tube (2) to the lampholder (6).

Subtask 33-21-11-420-050-B ** ON A/C NOT FOR ALL

B. Installation of the Advanced Integrated Ballast-Unit (AIBU) with Lampholder
(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Install the spacers (9) to the AIBU with lampholder (7).
Make sure you hear a click when the spacers (9) locks in the position.
(3) Put the AIBU with lampholder (7) in the correct position on the aircraft structure.
(4) If removed, put the reflector (6) in the correct position on the AIBU with lampholder (7).
(5) Install the washers (3) and the screws (4).

CAUTION: DO NOT TOUCH THE LAMP GLASS WITH YOUR FINGERS. THE OILS FROM YOUR SKIN WILL QUICKLY CAUSE DETERIORATION OF THE LAMP. IF YOU ACCIDENTALLY TOUCH THE LAMP GLASS, CLEAN IT WITH A LINT-FREE CLOTH.

(6) Install the fluorescent tube (5) in the lampholder (7).
(7) Remove the CAP-BLANKING from each electrical connector and receptacle.
(8) Make sure that all the electrical connections are clean and in the correct condition.
(9) Connect the electrical connector (1) as identified during the removal procedure.
(10) If necessary, attach the electrical wire with TIE WRAP(S).

Subtask 33-21-11-865-052-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
2000VU	CAB LIGHT PWR-CEILING-AFT	307LG	H08
2000VU	CAB LIGHT PWR-CEILING-AFT	304LG	H07
2000VU	CAB LIGHT PWR-CEILING-FWD	306LG	H06
2000VU	CAB LIGHT PWR-CEILING-FWD	305LG	H05
2000VU	CAB LIGHT PWR-WINDOW-AFT	302LG	H04
2000VU	CAB LIGHT PWR-WINDOW-AFT	301LG	H03
2000VU	CAB LIGHT PWR-WINDOW-FWD	303LG	H02
2000VU	CAB LIGHT PWR-WINDOW-FWD	300LG	H01
2000VU	LIGHT-CABIN-ENTRY	308LG	J02

Subtask 33-21-11-860-050-A ** ON A/C NOT FOR ALL

D. Preparation for the test
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Energize the Cabin Intercommunication Data System (CIDS) (Ref. AMM TASK 23-73-00-861-001).
(3) Make sure that the cockpit door is closed and the engines are not running.
(4) Push the MAIN OFF membrane switch on the forward attendant panel 120RH.
(5) Make sure that the integral lights on all BRT, DIM1, DIM2, WDO and CLG membrane switches on the forward attendant panel 120RH are off.

Subtask 33-21-11-710-050-A ** ON A/C NOT FOR ALL

E. Test of the Entrance-, Window- and Ceiling-Lights
(1) Do the operational test.

ACTION	RESULT
1.For the entrance lighting: On the forward attendant panel:	At the related entrance light position:
push the ENTRY BRT pushbutton switch.	the related entrance light comes on. the ENTRY BRT integral light on the related pushbutton comes on.
push the ENTRY DIM 1 pushbutton switch.	the related entrance light intensity decreases. the ENTRY DIM 1 integral light on the related pushbutton comes on.
push the ENTRY DIM 2 pushbutton switch.	the related entrance light intensity decreases again. the ENTRY DIM 2 integral light on the related pushbutton comes on.
push the ENTRY DIM 2 pushbutton switch.	the related entrance light goes off. the ENTRY DIM 2 integral light on the related pushbutton goes off.
2.For the window or ceiling lighting: On the forward attendant panel:	At the related window or ceiling light position:
- push the BRT pushbutton switch.	the related window or ceiling light comes on. the BRT integral light on the related pushbutton comes on.
push the DIM 1 pushbutton switch.	the related window or ceiling light intensity decreases. the DIM 1 integral light on the related pushbutton comes on.
push the DIM 2 pushbutton switch.	the related window or ceiling light intensity decreases again. the DIM 2 integral light on the related pushbutton comes on.
push the DIM 2 pushbutton switch.	the related window or ceiling light goes off. the DIM 2 integral light on the related pushbutton goes off.

Subtask 33-21-11-860-050-B ** ON A/C NOT FOR ALL

F. Preparation for the test
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the cockpit door is closed and the engines are not running.
(3) Push the LIGHT MAIN ON/OFF membrane switch on Flight Attendant Panel (FAP) 120RH.
(4) Make sure that the indication on all of the BRT, DIM1, DIM2, WDO and CLG buttons on FAP 120RH are off.

Subtask 33-21-11-710-050-B ** ON A/C NOT FOR ALL

G. Operational Test
(1) Do this test of the entrance-Lights, window-lights and ceiling-lights:

ACTION	RESULT
1.For the entrance lighting:
On Flight Attendant Panel (FAP) 120RH:	On FAP 120RH:
Set the 'LIGHT' page.	All possible cabin lighting zones are shown.
Push the ENTRY/BRT button.	The ENTRY/BRT indication on the related button comes on.
	In the cabin: The related entrance light comes on.
	On FAP 120RH:
Push the ENTRY/DIM1 button.	The ENTRY/DIM1 indication on the related button comes on.
	In the cabin: The related entrance light intensity decreases.
	On FAP 120RH:
Push the ENTRY/DIM2 button.	The ENTRY/DIM2 indication on the related button comes on.
	In the cabin: The related entrance light intensity decreases again.
	On FAP 120RH:
Push the ENTRY/DIM2 button again.	The ENTRY/DIM2 indication on the related button goes off.
	In the cabin: The related entrance light goes off.
2.For the window or ceiling lighting:
On FAP 120RH:	On FAP 120RH:
Push the BRT button.	The BRT indication on the related button comes on.
	In the cabin: The related window or ceiling light comes on.
	On FAP 120RH:
Push the DIM1 button.	The DIM1 indication on the related button comes on.
	In the cabin: The related window or ceiling light intensity decreases.
	On FAP 120RH:
Push the DIM2 button.	The DIM2 indication on the related button comes on.
	In the cabin: The related window or ceiling light intensity decreases again.
	On FAP 120RH:
Push the DIM2 button again.	The DIM2 indication on the related button goes off.
	In the cabin: The related window or ceiling light goes off.

5. Close-up
Subtask 33-21-11-410-051-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) For the ceiling ballast unit and lampholder:

Install the related ceiling panel (Ref. AMM TASK 25-23-41-400-001).

NOTE: It is not necessary to do the operational test (Ref. AMM TASK 33-21-00-710-001) and (Ref. AMM TASK 33-51-00-710-001), if ceiling or entrance panels are installed because of an illumination unit change.

(3) For the window ballast unit and lampholder:

Install the related cove light panel (Ref. AMM TASK 25-23-48-400-001).

(4) For the entrance ballast unit and lampholder:

Put the STEPLADDER 1.0 M (3.3 FT) below the related ceiling panel.
Install the related ceiling panel (Ref. AMM TASK 25-23-42-400-001) (Ref. AMM TASK 25-23-42-400-002).
If the Cockpit Door Surveillance System (CDSS) camera is installed in the ceiling panel, make sure that the operational test of the CDSS camera is done (Ref. AMM TASK 23-72-00-710-001).

(5) Remove the STEPLADDER 1.0 M (3.3 FT).

Subtask 33-21-11-862-050-A ** ON A/C NOT FOR ALL

B. Put the aircraft back to the serviceable condition.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 00:53:17 UTC