S 864-024
 (22)
 Release pressure from hydraulic system B if it is not necessary (Ref 27-81-00/201).
S 434-025
 (23)
 Install the landing light lens, if it was removed (AMM 33-42-21/401).
 (24)
 Install the forward wing to the body fairing, if it was removed.
 S 424-026
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 ALL  ú ú 02 Page 413 ú Jul 12/00 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
737-300/400/500MAINTENANCE MANUAL
 KRUEGER FLAP TO NACELLE AND STRUT SEAL DOOR - MAINTENANCE PRACTICES
___________________________________________________________________
 1.  General_______
 A.  There are five tasks in this procedure. The first and second tasks are the removal and installation of the seal door. The third and fourth tasks are the removal and installation of the seal door spring. The fifth task is the adjustment of the seal door.
 TASK 27-81-14-002-001
 2.  Seal Door Removal_________________
 A.  Special Tools and Equipment
 (1)  
F80048-84, -89 or -90 - Leading Edge Flap Actuator Lock
 B.  
References
 (1)  
27-81-00/201, Leading Edge Flap and Slat Control System
 C.  
Access
 (1)  
Location Zone 101 Control Cabin, LH 102 Control Cabin, RH 302 Wing Outboard Leading Edge with Slats, LH 303 Wing Inboard Leading Edge with Slats, LH 402 Wing Outboard Leading Edge with Slats, RH 403 Wing Inboard Leading Edge with Slats, RH
 D.  
Procedure
 S 862-002
 (1)  
Pressurize hydraulic system B (Ref 27-81-00/201).
S 862-003
 (2)  
Move the flap control lever to the 1-unit detent to extend the leading edge flaps.
 S 482-004
 WARNING: CAREFULLY INSTALL THE LEADING EDGE FLAP ACTUATOR LOCKS TO
_______ PREVENT ACCIDENTAL OPERATION OF THE LEADING EDGE FLAPS. THE LEADING EDGE FLAPS CAN MOVE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Install the leading edge flap actuator locks on the actuators of the leading edge flaps (Ref 27-81-00/201).
 (4) 
Release the pressure from hydraulic system B (Ref 27-81-00/201).
 S 862-024
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 27-81-14
 ALL  ú ú 01 Page 201 ú Jul 12/00 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL 
KRUEGER FLAP SEAL DOOR 
SEE A 
C  
A  HINGE  
STOP  
BRACKET  
SPRING  
B  
BOLT  
A  
C  
LEVER  
B  
LINK  
SEAL  
SEAL DOOR  SEAL DOOR  
COLLAR  
CAM ROLLER  
INBD  SEE  D 
A
Krueger Flap to Nacelle and Strut Seal Door Installation 
Figure 201 (Sheet 1)
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 27-81-14
 ALL  ú ú 01 Page 202 ú Nov 15/91 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 737-300/400/500MAINTENANCE MANUAL 
SEAL DOOR EXTENDED 
SEE 
C
SUPPORT PLATE 
COLLAR
SEAL DOOR SHAFT
C-C
Krueger Flap to Nacelle and Strut Seal Door Installation 
Figure 201 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:737-300 400 500 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 6(62)