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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 173-074
(19) Flush from the air supply through the pitot 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 433-075
(20)
Replace the pressure cap on the pitot line disconnected from the left side pitot port of the elevator feel comptuer.
S 093-248
(21)
Remove air supply from the drain line No. 12 and replthe ace plug.
I. Flush the Auxiliary No. 2 Pitot System
S 283-341
(1)
Make sure that the lower right pitot-static probe, source select valve, the elevator feel computer, and all of the drain assemblies are disconnected from the auxiliary No. 2 pitot system.
S 493-249
(2)
In the electrical and electronics compartment, remove the plug from drain line No. 21 (Fig. 301) and connect the air supply.
S 013-342
(3)
In the electrical and electronics compartment, remove the pressure cap from the hose disconnected from the source select valve.
S 413-845
(4)
Replace the pressure cap on the hose disconnected from the source select valve.
S 033-083
(5)
At STA 400 in the right crawlway, remove the plug from drain line No. 8 (Fig. 301).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
34-11-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 173-084
(6) Flush from the air supply through the pitot 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 433-085
(7)
Replace the plug on drain line No. 8.
S 033-086
(8)
At STA 270 in the right crawlway, remove the pressure cap from the pitot hose disconnected from the lower right pitot-static probe, PT connection.
S 173-087
(9)
Flush from the air supply through the pitot 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 433-088
(10)
Replace the pressure cap on the pitot hose disconnected from the lower right pitot-static probe.
S 033-089
(11)
At STA 400 in the left crawlway, remove the plug from drain line No. 14 (Fig. 301).
S 173-090
(12)
Flush from the air supply through the pitot 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.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
34-11-00
ALL ú ú 07 Page 318 ú Jun 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 433-091
(13)
Replace the plug on drain line No. 14.
S 033-092
(14)
At STA 740 on the left side of the forward cargo compartment, remove the plug from drain line No. 24 (Fig. 301).
S 173-093
(15)
Flush from the air supply through the pitot 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(24)
