Removal of the Power Unit for the Passenger Reading Light
TASK 23-73-38-000-001-A
Removal of the Power Unit for the Passenger Reading Light
1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 23-73-38-861-050-A ** ON A/C NOT FOR ALL Subtask 23-73-38-865-050-A ** ON A/C NOT FOR ALL
Subtask 23-73-38-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:12:31 UTC
Removal of the Power Unit for the Passenger Reading Light
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 | CAP - BLANKING |
| No specific | 1 | PIN - NON METALLIC |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| REFERENCE | DESIGNATION |
|---|---|
| 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) |
Subtask 23-73-38-861-050-A ** ON A/C NOT FOR ALL Subtask 23-73-38-865-050-A ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 23-73-38-865-052-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2000VU | PASSENGER READING LIGHT | 6LW | G06 |
| 2000VU | PASSENGER READING LIGHT | 5LW | G05 |
| 2000VU | PASSENGER READING LIGHT | 4LW | G04 |
| 2000VU | PASSENGER READING LIGHT | 3LW | G03 |
| 2000VU | PASSENGER READING LIGHT | 2LW | G02 |
| 2000VU | PASSENGER READING LIGHT | 1LW | G01 |
C. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2000VU | PASSENGER READING LIGHT | 6LW | G06 |
| 2000VU | PASSENGER READING LIGHT | 5LW | G05 |
| 2000VU | PASSENGER READING LIGHT | 4LW | G04 |
| 2000VU | PASSENGER READING LIGHT | 3LW | G03 |
| 2000VU | PASSENGER READING LIGHT | 2LW | G02 |
| 2000VU | PASSENGER READING LIGHT | 1LW | G01 |
Subtask 23-73-38-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Power Unit for the Passenger Reading Light
(1) Open the Passenger Service/Information Unit (PSIU):
(a) Remove the section hose (9) from one side of the mounting rail (8).
(b) Pull and lower the PSIU (1).
(b) Disconnect the electrical connector (5) from the reading light (7).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Remove the plastic rivets (3) with a PIN - NON METALLIC.
(5) Remove the power unit:
(1) Open the Passenger Service/Information Unit (PSIU):
(a) Remove the section hose (9) from one side of the mounting rail (8).
(b) Pull and lower the PSIU (1).
NOTE: Be careful when you work on the lowered PSIU. If you use too much force, it is easy to move the PSIU in the mounting rail too much. This can cause damage to the hinge in the mounting rail.
(2) Disconnect the electrical connectors: CAUTION:
MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
(a) Disconnect the electrical connector (4) from the PCB (2). (b) Disconnect the electrical connector (5) from the reading light (7).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Remove the plastic rivets (3) with a PIN - NON METALLIC.
(5) Remove the power unit:
CAUTION:
BE CAREFUL WHEN YOU REMOVE OR INSTALL A PRINTED CIRCUIT BOARD. DO NOT TOUCH IT DIRECTLY. IT IS EASY TO CAUSE DAMAGE TO THIS COMPONENT.
(a) Hold the PCB (2) at its sides and remove it from the PSIU (1).
Power Unit - Removal/Installation