STRINGER ATTACHMENT FRAME ATTACHMENT B-B
CLIP NUT STUD STUD
CLIP CLIP STUD CLIP NUT SCREW
B
Insulation Installation - ExampleFigure 401 (Sheet 2)
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747-400 MAINTENANCE MANUAL
BLANKET FIRE STOP
ASSEMBLY BLANKET
STRING (REF)
STITCH
(REF)
AT AIR BAFFLE BAYS
0.50 DIA OR SMALLER STAND OFF
DISK BLANKET
REINFORCED DISK (EXAMPLE)
EXAMPLE OF INSULATION BETWEEN THE WINDOWS
Insulation Installation - Example Figure 401 (Sheet 3)
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MAINTENANCE MANUAL
INSULATION
FOAM PAD INSTALLATION
(EXAMPLE)
INSULATION BLANKETS
BODY SKIN
BLANKET AND CAP STRIPIN WINDOW REVEAL AREA (EXAMPLE)
Insulation Installation - Example
Figure 401 (Sheet 4)
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BLANKET TAB (ATTACHED INSULATION BLANKET TO THE BLANKETS)
CAP STRIP
EXAMPLE OF INSULATION WRAP AROUND AN INTERCOSTAL
EXAMPLE OF INSULATION BETWEEN THE INTERCOSTALS AND THE BLANKET OVERLAP
Insulation Installation - Example Figure 401 (Sheet 5)
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747-400 MAINTENANCE MANUAL
(b) The upper deck reveal panel (AMM 25-21-02/401).
S 014-005
(4)
For access to insulation blankets installed in the upper deck ceiling, remove the ceiling panels on the upper deck (AMM 25-22-03/401).
S 034-006
(5)
Remove the equipment attached through the blankets and cap strips as applicable.
S 034-007
(6)
Remove the cap strip fasteners.
S 034-021
(7)
Remove the cap strips.
S 034-008
(8)
Remove the blanket fasteners.
S 024-009
(9)
Remove the blanket.
TASK 25-21-04-404-009
3. Install the Insulation Blanket (Fig. 401)______________________________
A. Consumable Materials
(1)
B00148 Solvent - Methyl Ethyl Ketone (MEK), TT-M-261
(2)
G00348 Tape-Permacel Sealing
(3)
G00000 Cord-Nylon,#5 Filament, Seine Twist 35-Pound Test
B. References
(1)
25-21-02/401, Upper Deck Window Reveal
(2)
25-22-03/401, Upper Deck Ceiling Panels
(3)
IPC 25-21-04
C. Access
(1) Location Zone
200 Upper-Half Fuselage
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D. Procedure
S 014-027
CAUTION: LET THE SOLVENTS FROM THE CORROSION-INHIBITING COMPOUND (CIC)
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