737-300/400/500
MAINTENANCE MANUAL

MAIN EQUIPEMENT CENTER ACCESS DOOR, 117AL
MAIN EQUIPMENT CENTER
SEE A
FWD
FORWARD BLADDER ASSEMBLY
SEE B
MAIN EQUIPMENT CENTER
A

Forward Bladder Assembly Installation
Figure 401 (sheet 1)

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A 737-300/400/500MAINTENANCE MANUAL
SEE

 A-A

Forward Bladder Assembly Installation
Figure 401 (sheet 2)

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A 737-300/400/500MAINTENANCE MANUAL
 S 024-012
 (6)  Remove the plate adapter (11) and the forward drain bladder assy (6).
 TASK 38-31-31-404-045
 3. Forward Sill Drain Bladder Assembly Installation (Fig. 401)
________________________________________________
 A. Consumable Materials
 (1)  
A00027 Sealant, RTV - BAC 5010, Type 60

 (2)  
A00247 Sealant, Pressure and Environmental-Chromate Type - BMS5-95.

 B. Access
 (1)  
Location Zones

 (a) 117 Electrical and Electronics Compartment - Left

 (2)  
Access Panels

 (a)  117 A Electronic Equipment Access Door
 C. Forward Sill Drain Bladder Assembly Installation.
 S 394-013
 (1)  
Apply a fay surface seal with sealant, BMS5-95 between the plate assembly (7) and the plate adapter (11).

 S 864-021

 (2)  
Put the plate adapter (11) in its position on the plate assembly with the bolt holes aligned.

 S 394-014

 (3)  
Apply a fay surface seal with sealant, BAC 5010, Type 60 between the plate assembly (7) and the forward drain bladder assy (6).

 S 864-022

 (4)  
Put the forward drain bladder assy (6) in its position on the plate adapter (11).

 S 394-015

 (5)  
Apply a wet seal with sealant, BAC 5010, Type 60 to the bolts (9).

 S 424-016

 (6)  
Install the bolts (9), washers (10), countersunk washers (13), and nuts (12).

 S 424-017

 (7)  
Install the cap assembly (5) and clamp (8) on the forward drain bladder assy (6).

 (8)  
Put the plate assembly (7) in its position.

 S 384-023
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A
737-300/400/500MAINTENANCE MANUAL
 S 424-018
 (9)  
Install the screws (2) and washers (3) to attach the plate assembly (7) to the structure.

 S 424-019

 (10)
 Install the clamp (1) and the hose to the outlet of the forward drain bladder assy (6).

 S 424-020

 (11)
 Install the clamps (4) and the drain lines to the inlet of the forward drain bladder assy (6).

 D. Forward Sill Drain Bladder Assembly Installation Test.
 S 794-024
 (1)  
Pour water into the sill drain at the forward entry door.

 S 794-025

 (2)  
Make sure the water flows to the forward sill drain bladder assembly without leakage.

 E. Put the Airplane Back to Its Usual Condition
 S 414-026
 (1)  Close the Electronic Equipment Access Door, 117A.
 TASK 38-31-31-004-046
　
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