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A
747-400 MAINTENANCE MANUAL
REMOVABLE FIN TIP
UPPER RUDDER (REF)
REMOVABLE
LEADING EDGE

FIXED TRAILING
EDGE BEAM
AUXILIARY SPAR
LOWER RUDDER (REF)
REMOVABLE LEADING EDGE
FIBERGLASS HF ANTENNA
UNDER RAIN-EROSION
COATING

FRONT SPAR
REMOVABLE
LEADING EDGE
REMOVABLE
DORSAL FIN

Fiberglass Panel on Vertical Stabilizer
Figure 801

F60134
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747-400
MAINTENANCE MANUAL

MIX RATIO  VIS-COSITY  RELA-TIVE  THICKNESS, DRY FILM  CURE TIMES, HOURS 
MATERIAL  PARTS  SEC.  HUMI- MIL-INCHES 
BY  ZAHN  DITY 
VOLUME  NO. 2  PERCENT  TOTALPER COAT  OVERCOAT TO RECOAT TO FINAL 
TYPE I, CLASS 5_______________ 
FP-200, VEHICLE  48  22 TO 28  MINIMUM  MAXIMUM  12 |2  MINIMUM  2 TO 8  TO HANDLE 
CURING AGENT  4  AT 70` TO  30  1ST TO  1/3,  -36 
ACCELERATOR  3  80`F  1.5  MAXIMUM  TO SERV-
(RECOM- 2ND AND  2 HOURS  ICE 
MENDED)  ON 2.0  -48 1

CURE TIME MAY BE SPEED UP BY 24 HOURS AT ROOM TEMPERATURE FOLLOWED BY OVEN CURING AT 150`F FOR 3 HOURS.
Material Chart
Figure 802

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 ú  01  Page 810
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F60734
A
747-400 MAINTENANCE MANUAL
 FIN TIP - REMOVAL/INSTALLATION
______________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task is the removal of the vertical stabilizer (fin) tip. the second task is the installation of the fin tip.
 TASK 55-30-02-004-001
 2.  Remove the Fin Tip (Fig. 401)
__________________
 A.  References
 (1)  IPC 55-30-04 Fig. 1
 B.  Access
 (1)  Location Zone
 327 Fin Tip

 C.  Procedure
 S 024-019
 WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE AREA
_______ BELOW THE FIN TIP. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR IF THE EQUIPMENT FALLS.
 (1)  
Remove the fasteners that attach the fin tip to the fin (Fig. 401).

 S 034-017

 (2)  
Remove the fin tip.

 S 554-020

 (3)  
Put a cover on the closure rib and equipment for protection from the environment.

 TASK 55-30-02-404-003
 3.  Install the Fin Tip (Fig. 401)
___________________
 A.  Standard Tools and Equipment
 (1)  Bonding Brush - Stainless Steel Rotary, No. P-33-SS (C.W. Morris Co., Detroit, Michigan, or equivalent)
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747-400
MAINTENANCE MANUAL

A-A DIVERTER STRIP FASTENER B-B
Fin Tip Installation Figure 401
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