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 D.  A function of the linings is to contain a fire and the fire retardant (halon gas) in the compartment. This procedure installs a tape to seal the fasteners and the edges of the linings. It is important to install the tape correctly to prevent leakage.
 TASK 25-52-01-004-044
 2.  Sidewall Lining Removal_______________________
 A.  Special Tools and Equipment
 (1)
3PRE65B00040 Lower Cargo Door Opening Safety Barrier

 (2)
ST991A-2, Removal Tool - Scrivet Fasteners

 B.  References
 (1)
24-22-00/201, Manual Control

 (2)
52-34-00/001, Forward/Aft Cargo Doors

 C.  Access
 (1)  Location Zone
 100 Lower Half of Fuselage

 D.  Prepare for the Removal
 S 864-073
 (1)
Supply electrical ground power (Ref 24-22-00/201).

 (2)
Open the cargo compartment door (Ref 52-34-00/001).

 S 014-074
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
SEE D
SEE JCEILING LINING
PANEL (EXAMPLE)
SEE H
SEE G
SLOPING SIDEWALL SEE IVERTICAL SIDEWALLLINING PANEL LINING UPPER(EXAMPLE)
ATTACHMENT (EXAMPLE) CARGO
SEE DCDOORWAY B C(REF)
B
DECOMPRESSION A
VENT
A
DECOMPRESSION

SLOPING SIDEWALLVENT LINING PANEL (EXAMPLE)
VERTICAL SIDEWALL
VERTICAL SIDEWALL

LINING LOWER
LINING PANEL

ATTACHMENT (EXAMPLE)VERTICAL SIDEWALL(EXAMPLE)
LINING ACCESS SEE E
VERTICAL SIDEWALL

PANEL (EXAMPLE)
LINING CENTER FWD
ATTACHMENTS (EXAMPLE) VERTICAL SIDEWALL

FORWARD COMPARTMENT
LINING PANEL JOINTSEEA B VERTICAL ATTACHMENT (EXAMPLE)
DECOMPRESSION SEE C
VENT JOINT SEE D CEILING LININGATTACHMENT PANEL (EXAMPLE)(EXAMPLE)
SEE H SEE I SEE J
SEE G SEE F
FORWARD BULKHEAD
LINING PANEL
(EXAMPLE)

VERTICAL SIDEWALL VERTICAL SIDEWALL
LINING PANEL LINING UPPER ATTACHMENT
(EXAMPLE)DECOMPRESSION
E
(EXAMPLE) VENT DECOMPRESSION
E
SEE D VENT
C D
B
VERTICAL SIDEWALL
B
SLOPING SIDEWALLLINING PANEL B
DBC
LINING PANEL(EXAMPLE)
A
(EXAMPLE)
A
VERTICAL SIDEWALL

CARGOFWD LINING LOWER ATTACHMENT DOORWAY(EXAMPLE)
(REF) SEE E
VERTICAL
DECOMPRESSION
VENT JOINT

VERTICAL SIDEWALLATTACHMENT DECOMPRESSION LINING CENTER(EXAMPLE) VENT
ATTACHMENTS SEE F LINING PANEL JOINT (EXAMPLE) ATTACHMENT (EXAMPLE)
VERTICAL SIDEWALL
SEEA B 1 AIRPLANES WITH DECOMPRESSION VENTS SEE C
AFT COMPARTMENT Lower Lobe Ceiling and Sidewall Lining Installation Figure 401 (Sheet 1)
A42663
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
STRUCTURESTRUCTURE
MOUNTING
SCREW
VERTICAL SIDEWALL
LINING PANEL

VERTICAL SIDEWALL LINING PANEL
MOUNTING
A SCREW

B
STRUCTURE STRUCTURE
MOUNTING CEILINGVERTICAL SCREW AND LININGSIDEWALL NUTPLATE PANELLINING PANEL MOUNTING SCREW
2.00-INCH
3.00-INCH WIDE TAPE
WIDE TAPE
VERTICAL SIDEWALL
LINING PANEL
VERTICAL SIDEWALL
C
LINING PANEL
D
VERTICAL SIDEWALL LINING PANEL VERTICAL SIDEWALL LINING PANEL
MOUNTING
SCREW

STRUCTURE
2.00-INCH WIDE TAPE STRUCTURE
DECOMPRESSION
VENT FRAME
3.00-INCH WIDE TAPE
E F
Lower Lobe Ceiling and Sidewall Lining Installation Figure 401 (Sheet 2)
A42666
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