(2)  
AMM 25-21-39/401, Sidewall and Ceiling Insulation

 (3)  
51-31-00/201, Seals and Sealing

 B. Access
 (1)  
Location Zone
 108 Aft Half of Cabin
 706 Vertical Stabilizer

 (2)  
Access Panels
 9503/9504 Front Spar Access Door

 C. Procedure
 S 424-008-B00
 (1)  Install the dorsal fin (Fig. 401).
 (a) Put the dorsal fin in its position on the airplane.
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 (b)  Install the attach bolts on the fin.
 (2)  S 394-009-B00Do this task to apply sealant to the attach bolts: Application" (Ref 51-31-00/201). "Fillet Seal
 (3)  S 224-010-B00Make sure the clearances are in the tolerance shown in Fig. 401.
 (4)  S 414-011-B00Close the front spar access doors 9503 and 9504.
 (5)  S 414-012-B00Do this task to install the insulation blankets: Insulation" (AMM 25-21-39/401). "Install Sidewall
 (6)  S 414-013-B00Do this task: "Install Overhead Distribution Duct" (Ref 21-23-25/401).
 (7)  S 414-014-B00Install the entry light fixture.
 (8)  S 414-015-B00Close the forward access door in the aft lowered ceiling panel.

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737-300/400/500MAINTENANCE MANUAL
 VERTICAL STABILIZER (FIN) LEADING EDGE - REMOVAL/INSTALLATION
_____________________________________________________________
 1.  General_______
 A.  There are two tasks in this procedure. There is one task for the removal and one task for the installation of the vertical stabilizer (fin) leading edge.
 B.  The lower part of the leading edge is the HF antenna.
 TASK 55-33-11-004-001-B00
 2.  Vertical Stabilizer (Fin) Leading Edge Removal______________________________________________
 A.  Equipment
 (1)  Access Panel Leverage Adapter, B20004-21
 B.  References
 (1)  SRM 51-70-00, Repairs (Example)
 C.  Access
 (1)  
Location Zone
 706 Vertical Stabilizer

 (2)  
Access Doors
 9572, 9573 Leading Edge Access Doors

 D.  Procedure (Fig. 401)
 S 864-021-B00
 (1)  Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  
P6-1 Panel
 1) HF AC
 2) HF DC

 (b)  
P18-2 Panel
 1) HF AC
 2) HF DC

 S 014-019-B00
 WARNING: MAKE SURE PERSONNEL STAY A MINIMUM OF 6 FEET AWAY FROM THE
_______ VERTICAL STABILIZER WHEN THE HF SYSTEM TRANSMITS. RF ENERGY FROM THE HF COMMUNICATION ANTENNA CAN CAUSE INJURIES TO PERSONNEL.
 (2)  
Remove the leading edge access doors 9572 and 9573.

 S 034-004-B00

 (3)  
Remove the nut which attaches the electrical feedline tube to the antenna conductor.

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737-300/400/500MAINTENANCE MANUAL
 S 024-005-B00
 (4)  Remove the bolts of the fin leading edge.
 CAUTION: WHEN REMOVING PANEL FASTENERS, MAKE SURE THAT THE DRIVER
_______ BIT IS IN LINE WITH A FASTENER. THIS WILL PREVENT DRIVER BIT WOBBLE WHICH CAN CAUSE DAMAGE TO THE FASTENER RECESSES AND THREADS.
　
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