S 033-153
(12)
At STA 260 in the right crawlway, remove the plug from drain line No. 2 (Fig. 301).
S 173-154
(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 come out of the line to show
____
that the line is not cross connected.
S 433-155
(14)
Replace the plug on drain line No. 2.
S 033-156
(15)
At STA 270 in the right crawlway, remove the pressure cap from the static hose disconnected from the lower right pitot-static probe, S1 connection.
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747-400 MAINTENANCE MANUAL
S 173-157
(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 433-158
(17)
Replace the pressure cap on the static hose disconnected from the lower right pitot-static probe.
S 093-256
(18)
Remove the air supply from drain line No. 15 and replace the plug.
M. Flush the Auxiliary No. 2 Static System
S 283-346
(1)
Make sure that the lower left pitot-static probe, the upper right pitot-static probe, the center air data computer, the source select valve, and all of the drain assemblies are disconnected from the auxiliary No. 2 static system.
S 493-257
(2)
In the electrical and electronics compartment, remove the plug from drain line No. 19 (Fig. 301) and connect the air supply.
S 033-163
(3)
In the electrical and electronics compartment, remove the pressure cap from the static hoses joined by the MS21916D5-4 reducer.
S 173-347
(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 413-348
(5) Replace the pressure cap on the static hoses joined by the
MS219216D5-4 reducer.
S 033-166
(6) At STA 400 in the right crawlway, remove the plug from drain line
No. 7 (Fig. 301).
S 173-167
(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 come out of the line to show
that the line is not cross connected.
S 433-168
(8)
Replace the plug on drain line No. 7.
S 033-169
(9)
At STA 275 on the right side of main passenger cabin, remove the pressure cap from the static hose disconnected from the upper right pitot-static probe, S2 connection.
S 173-170
(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 433-171
(11)
Replace the pressure cap on the static hose disconnected from the upper right pitot-static probe.
S 033-172
(12)
At STA 260 in the left crawlway, remove the plug from drain line No. 4 (Fig. 301).
S 173-173
(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 come out of the line to show
____ that the line is not cross connected.
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本文链接地址：747-400 AMM 飞机维护手册 导航 NAVIGATION 1(28)
