S 032-007
 (2)  Remove the lens.
 (a)  
Remove the screws from the lens retainer.

 (b)  
Remove the lens retainer and the lens.

 S 962-006
 (3)  
Carefully replace the lamp.

 S 432-008

 (4)  
Install the lens.

 (a)  Clean the lens with a clean soft dry cloth.
 NOTE: Replace the lens, if the lens has a crack with a depth
____ that is more than 50% of its thickness. Also replace the lens, if the damage on its surface causes a decrease lighting intensity.
 (b)  
Put the retainer around the edge of the lens.

 (c)  
Hold the lens against the base of the light and install the screws in the retainer.

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737-300/400/500MAINTENANCE MANUAL
 D. Lamp Test
 S 862-009
 (1) Remove each DO-NOT-CLOSE or DO-NOT-OPERATE tag.
 (a) Close each circuit breaker that was opened.
 S 862-010
 (2) Set the switch to the on position.
 (a) Make sure the new lamp comes on correctly.
 S 862-011
 (3)
Set the switch to the off position.

 S 862-012

 (4)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

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737-300/400/500MAINTENANCE MANUAL
 STEADY POSITION (NAVIGATION) LIGHTS - REMOVAL/INSTALLATION
__________________________________________________________
 1.  General_______
 A.  This procedure contains these tasks for the steady position light:
 (1)  
The removal of a red or green steady position light (referred to as a colored light).

 (2)  
The installation of a colored light.

 (3)  
The removal of a white steady position light (referred to as a white light).

 (4)  
The installation of a white light.

 B.  The colored lights are in each wingtip behind a window (Fig. 401). The wingtip is sealed to stop fuel fumes and water.
 (1)  To remove and install a colored light, you remove the access panel below the wingtip. You do not remove the window.
 TASK 33-43-11-004-025
 2.  Colored Steady Position Light - Removal (Fig. 401)_______________________________________
 A.  Access
 (1)  
Location Zone
 301 Left Wing Tip
 401 Right Wing Tip

 (2)  
Access Panels
 7176 Left Wingtip Access Panel
 7576 Right Wingtip Access Panel

 B.  Procedure
 S 864-028
 (1)  Do one of these steps to remove electrical power from the steady position light:
 (a)  
Open each applicable circuit breaker and attach the DO-NOT-CLOSE tag: 1) On the load control center panel, P18.

 (b)  
At the overhead panel, P5, set the switch to the off position and attach the DO-NOT-OPERATE tag.

 S 014-024
 (2)  Get access to the colored light.
 (a)  Remove the screws that hold the access panel and remove the panel.
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737-300/400/500MAINTENANCE MANUAL
COLORED STEADY POSITION LIGHTS (RED)
SEE A
WHITE STEADY
POSITION LIGHT
SEE C
WHITE STEADY COLORED STEADY
POSITION LIGHT
POSITION 
LIGHTS (GREEN)  SEE  C  WINDOW  COLORED STEADY 
　
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