Removal of the Ceiling Panels - Aft Utility Area

TASK 25-23-42-000-002-A
Removal of the Ceiling Panels - Aft Utility Area

1. Reason for the Job

NOTE: More than one person is necessary for this task.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
261BC, 261CC, 262BC, 262CC

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 25-26-41-000-003-A	Removal of the Aft Curtain Rail
Galley-Part
Ceiling Panels AFT Utility Area ** ON A/C NOT FOR ALL
Ceiling-Panels Aft Utility-Area ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 25-23-42-861-051-A

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001)

Subtask 25-23-42-010-056-A

B. Get Access
(1) Remove the aft curtain and curtain rail (Ref. AMM TASK 25-26-41-000-003), if necessary.
(2) Remove the applicable galley-parts:

Galley-Part

NOTE: This workstep is only necessary, if the cabin has a space-flex concept.

(a) For galley G4A:
1 Remove the screws (4) and the cover (3).
2 Remove the screws (2) and the panel (1).
(b) For galley G4B:
1 Remove the screws (5) and the covers (6).

Subtask 25-23-42-865-051-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU B/ESS	153RH	G03
49VU	LIGHTING/EMER LT/CABIN	2WL	H06
49VU	LIGHTING/EMER LT/CABIN	1WL	H05
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H04
49VU	LIGHTING/EMER LT/CABIN	1WL	H03
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M08
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M09
** ON A/C NOT FOR ALL
121VU	COM/CIDS/DEU B/BAT	143RH	N12
** ON A/C ALL
2000VU	LIGHT-CABIN-ENTRY	308LG	J02
2001VU	LAVATORY AFT-OCCUPIED	11WJ	B04

4. Procedure
Subtask 25-23-42-020-055-A ** ON A/C NOT FOR ALL

A. Removal of the ceiling panel(s) (2) and/or (5)
(1) Remove the ceiling panel (2):
(a) If a fixed emergency-locator transmitter is installed:
1 Push and release the fastener (9) on the ceiling panel (2).
(b) If no fixed emergency-locator transmitter is installed:
1 Remove the assembly seal (7) from the mounting rail (8).
(c) Carefully move the ceiling panel (2) inboard and off the mounting rail (8).
(d) Lower the inboard edge of the ceiling panel (2) and pull the assembly brackets (10) out of the mounting slots (11).
(e) Carefully remove the ceiling panel (2).
(2) Remove the ceiling panel (5):
(a) Remove the assembly seal (7) from the mounting rail (8).
(b) Carefully move the ceiling panel (5) inboard and off the mounting rail (8).
(c) Lower the inboard edge of the ceiling panel (5) and pull the assembly brackets (10) out of the mounting slots (11).
(d) Carefully remove the ceiling panel (5).

Subtask 25-23-42-020-058-A ** ON A/C NOT FOR ALL

B. Removal of the ceiling panel(s) (3) and/or (4)
(1) Hold the ceiling panel(s) (3) and/or (4) and push and release the fasteners (9).

NOTE: Two safety straps hold each ceiling panels in two different open positions.

(2) Carefully lower the ceiling panel(s) (3) and/or (4) until the first safety strap (13) stops the travel.
(3) Hold the ceiling panel(s) (3) and/or (4) and remove the first safety strap (13) from the bracket (16).
(4) Carefully lower the ceiling panel(s) (3) and/or (4) until the second safety strap (14) stops the travel.
(5) Get access to the electrical connector (15) through the opening behind the ceiling panel(s) (3) and/or (4).
(6) Disconnect the electrical connector (15).
(7) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(8) Hold the ceiling panel(s) (3) and/or (4) and remove the second safety strap (14) from the bracket (16).
(9) Hold the ceiling panel(s) (3) and/or (4) and remove the screws (12) that attach them to the hinges (21).
(10) Carefully remove the panel(s) (3) and/or (4).

Subtask 25-23-42-020-055-C ** ON A/C NOT FOR ALL

C. Removal of the Ceiling Panels (1) and (4)
(1) Remove ceiling panel 261BC (1):
(a) If a fixed emergency-locator transmitter is installed:
1 Hold ceiling panel 261BC (1) and release the quick-release fasteners (7).
2 Remove ceiling panel 261BC (1).
(b) If no fixed emergency-locator transmitter is installed:
1 Remove the section hose (5) from the mounting rail (6).
(c) Carefully move ceiling panel 261BC (1) inboard and off the mounting rail (6).
(d) Lower the inboard edge of ceiling panel 261BC (1) and pull the assembly brackets (9) out of the mounting slots (8).
(e) Carefully remove ceiling panel 261BC (1).
(2) Remove ceiling panel 262BC (4):
(a) Remove the section hose (5) from the mounting rail (6).
(b) Carefully move ceiling panel 262BC (4) inboard and off the mounting rail (6).
(c) Lower the inboard edge of ceiling panel 262BC (4) and pull the assembly brackets (9) out of the mounting slots (8).
(d) Carefully remove ceiling panel 262BC (4).

Subtask 25-23-42-020-058-B ** ON A/C NOT FOR ALL

D. Removal of the Ceiling Panels (2) and (3)
(1) Hold ceiling panels 261CC (2) and 262CC (3) and release the quick-release fasteners (7).

NOTE: Two safety straps hold each ceiling panels in two different open positions.

(2) Carefully lower ceiling panels 261CC (2) and 262CC (3) until the safety strap (13) stops the travel.
(3) Hold ceiling panels 261CC (2) and 262CC (3) and remove the safety strap (13) from the bracket (14).
(4) Carefully lower ceiling panels 261CC (2) and 262CC (3) until the safety strap (12) stops the travel.
(5) Get access to the electrical connector (10) through the opening behind ceiling panels 261CC (2) and 262CC (3).
(6) Disconnect the electrical connector (10) from the Cabin LED Unit (CLEDU).
(7) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(8) Hold ceiling panels 261CC (2) and 262CC (3) and remove the safety strap (12) from the bracket (14).
(9) Hold ceiling panels 261CC (2) and 262CC (3) and remove the screws (11) that attach them to the hinges (17).
(10) Carefully remove ceiling panels 261CC (2) and 262CC (3).

Subtask 25-23-42-020-059-A

E. Removal of the Trim Panel (1)
(1) Remove the bolts (17) and the washers (18) from the panel (1) through the openings behind the ceiling panels (2) and (5).
(2) Lower the trim panel (1) and get access to the electrical connector (6) 7243VC.
(3) Disconnect the electrical connector (6) 7243VC.
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Carefully remove the trim panel (1).

[Rev.10 from 2021] 2026.04.01 03:49:32 UTC