S 173-114

 (10)
 Flush from the air supply through the static line with dry filtered air, 20 to 30 psi, for 2 minutes.

 NOTE: Make that you can feel air come out of the line to show that
____
 the line is not cross connected.

 S 433-115
 (11)
 Replace the pressure cap on the static hose disconnected from the upper left pitot-static probe.

 S 033-116

 (12)
 At STA 260 in the right crawlway, remove the plug from drain line No. 1 (Fig. 301).

 S 173-117

 (13)
 Flush from the air supply through the static line with dry filtered air, 20 to 30 psi, for 2 minutes.

 NOTE: Make sure that you can feel air is coming out of the line to
____
 show that the line is not cross connected.

 S 433-118
 (14)
 Replace the plug on drain line No. 1.

 S 033-119

 (15)
 At STA 270 in the right crawlway, remove the pressure cap from the static hose disconnected from the lower right pitot-static probe, S2 connection.

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747-400 MAINTENANCE MANUAL
 S 173-120
 (16) Flush from the air supply through the static line with dry filtered air, 20 to 30 psi, for 2 minutes.
 NOTE: Make sure that you can feel air come out of the line to show
____
 that the line is not cross connected.

 S 433-121
 (17)
 Replace the pressure cap on the static hose disconnected from the lower right pitot-static probe.

 S 093-252

 (18)
 Remove the air supply from drain line No. 17 and replace the plug.

 K. Flush the First Officer's Static System
 S 283-123
 (1)  
Make sure that the upper right pitot-static probe, the lower left pitot-static probe, the right air data computer, and all of the drain assemblies are disconnected from the first officer's static system.

 S 493-253

 (2)  
In the electrical and electronics compartment, remove the plug from drain line No. 20 (Fig. 301) and connect the air supply.

 S 033-125

 (3)  
In the electrical and electronics compartment, remove the pressure cap from the static hose disconnected from the right air data computer.

 S 173-126

 (4)  
Flush from the air supply through the static line with dry filtered air, 20 to 30 psi, for 2 minutes.

 NOTE: Make sure that you can feel air come out of the line to show
____
 that the line is not cross connected.

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747-400 MAINTENANCE MANUAL
 S 433-127
 (5)  Replace the pressure cap on the static hose disconnected from the
 right air data computer.
 S 033-128
 (6)  At STA 400 in the right crawlway, remove the plug from drain line
 No. 6 (Fig. 301).
 S 173-129
 (7)  Flush from the air supply through the static line with dry filtered
 air, 20 to 30 psi, for 2 minutes.
 NOTE:____ Make sure that you can feel air is coming out of the line to
 show that the line is not cross connected.

 S 433-130
 (8)  
Replace the plug on drain line No. 6.

 S 033-131

 (9)  
At STA 275 on the right side of the main passenger cabin, remove the pressure cap from the static hose disconnected from the upper right pitot-static probe, S1 connection.

 S 173-132

 (10)
 Flush from the air supply through the static line with dry filtered air, 20 to 30 psi, for 2 minutes.

 NOTE: Make sure that you can feel air come out of the line to show
____ that the line is not cross connected.
 S 433-133
 (11) Replace the pressure cap on the static hose disconnected from the upper right pitot-static probe.
　
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