Removal of the Passenger Service Unit

TASK 23-73-45-000-001-A
Removal of the Passenger Service Unit

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

REFERENCE	QTY	DESIGNATION
M15570-20	1	INSERTION EXTRACTION TOOL

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-38-000-802-A	Removal of the Pax Call Switch-Card
TASK 23-73-38-000-803-A	Removal of the Reading Light Switch-Card
TASK 23-73-64-000-802-A	Removal of Reading Light Lens
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 25-25-11-000-001-A	Removal of the Filler Panels
ESPM 2056410
Passenger Service Unit

3. Job Set-up
Subtask 23-73-45-860-050-A

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

Subtask 23-73-45-865-050-A

B. Open, safety and tag these circuit breakers in this sequence:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DEU A BAT/LINE 1	144RH	N13
121VU	COM/CIDS/DEU A BAT/LINE 2	145RH	N14
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DEU A BAT/FWD R	258RH	N14
121VU	COM/CIDS/DEU A BAT/L FWD	259RH	N13
121VU	COM/CIDS/DEU A BAT/AFT R	272RH	Q11
121VU	COM/CIDS/DEU A BAT/AFT L	279RH	Q10
** ON A/C NOT FOR ALL
121VU	DEU A BAT MID L	295RH	M12
121VU	DEU A BAT MID R	296RH	M13
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/LINE 1	154RH	G04
49VU	COM/CIDS/DEU A ESS/LINE 2	155RH	G05
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/FWD R	158RH	HA10
49VU	COM/CIDS/DEU A ESS/FWD L	159RH	HA09
49VU	COM/CIDS/DEU A ESS/AFT R	172RH	HA12
49VU	COM/CIDS/DEU A ESS/AFT L	179RH	HA11
** ON A/C NOT FOR ALL
49VU	COM / CIDS / DEU A ESS / MID L	195RH	G04
49VU	COM / CIDS / DEU A ESS / MID R	196RH	G05
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M10
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M13
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M14
** ON A/C NOT FOR ALL
2001VU	CIDS-DEU A NORM-AFT-LH	173RH	C06
** ON A/C NOT FOR ALL
2001VU	CIDS/ DEU A NORM AFT LH	173RH	C07
** ON A/C NOT FOR ALL
2001VU	CIDS-DEU A NORM-AFT-RH	174RH	C07
** ON A/C NOT FOR ALL
2001VU	CIDS/ DEU A NORM AFT RH	174RH	C08
2001VU	CIDS/ DEU A NORM MID 2 LH	175RH	C05
2001VU	CIDS/ DEU A NORM MID 2 RH	176RH	C06
** ON A/C NOT FOR ALL
2001VU	CIDS-DEU A NORM-MID-LH	197RH	C04
2001VU	CIDS-DEU A NORM-MID-RH	198RH	C05
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/2 R	466RH	HA12
49VU	COM/CIDS/DEU A ESS/1 R	464RH	HA10
49VU	COM/CIDS/DEU A ESS/1 L	463RH	HA09
49VU	COM/CIDS/DEU A ESS/2 L	465RH	HA11
121VU	COM NAV/CIDS/DEU A NORM/R AFT	668RH	M14
121VU	COM NAV/CIDS/DEU A NORM/R MID	666RH	M12
121VU	COM NAV/CIDS/DEU A NORM/R FWD	664RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L FWD	663RH	M09
121VU	COM NAV/CIDS/DEU A NORM/L MID	665RH	M11
121VU	COM NAV/CIDS/DEU A NORM/L AFT	667RH	M13
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	1LW	G01
** ON A/C NOT FOR ALL
2000VU	PASSENGER/READING/LIGHT	2LW	G02
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	2LW	G02
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	3LW	G03
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	4LW	G04
2000VU	PASSENGER READING LIGHT	5LW	G05
2000VU	PASSENGER READING LIGHT	6LW	G06

4. Procedure
Subtask 23-73-45-020-050-A

A. Removal of the Passenger Service Unit (PSU)

NOTE: If you want to remove the Pax Call Switch-Cards, please refer to (Ref. AMM TASK 23-73-38-000-802).

NOTE: If you want to remove the Reading Light Switch-Cards, please refer to (Ref. AMM TASK 23-73-38-000-803).

(1) If necessary, remove the filler panel of the Passenger Service/Information Unit (PSIU) (Ref. AMM TASK 25-25-11-000-001).
(2) Open the Passenger Service Unit (PSU) (4):

NOTE: It is recommended to open the PSU from the inboard side.

(a) Carefully bend down the rubber string (3) from the inboard mounting rail.
(b) Carefully push the PSU (4) in direction to the aisle. This unlocks the PSU from the inboard mounting rail (2).
(c) Let the PSU come down slowly with one side.
(3) Disconnect the electrical connectors:
(a) Open the cable straps and cut the cable ties that fixes the cables outside the PSU.
(b) Disconnect the electrical connector (5).
(c) Put a blanking cap on the disconnected electrical connector (5).
(d) Disconnect the connected plugs (1) with the M15570-20 INSERTION EXTRACTION TOOL ESPM 2056410.
(4) Pull down the rubber string (3) from the outboard rail (2).
(5) Lift and disengage the PSU (4) from the rail (2) and then remove it.
(6) If you want to replace the PSU with a new PSU, remove the reading light lenses (Ref. AMM TASK 23-73-64-000-802).

[Rev.10 from 2021] 2026.04.01 05:38:33 UTC