(8)  
AMM 27-41-00/501, Horizontal Stabilizer Trim Control System

 (9)  
AMM 27-51-00/501, Trailing Edge Flap System

 (10)
 AMM 27-61-00/501, Spoiler Control System

 (11)
 AMM 27-81-00/501, Leading Edge Flap System

 (12)
 AMM 32-11-02/301, Wing Gear Shock Strut

 (13)
 AMM 32-11-02/401, Wing Gear Shock Strut

 (14)
 AMM 32-13-02/301, Body Landing Gear Shock Strut

 (15)
 AMM 32-13-02/401, Body Gear Shock Strut

 (16)
 AMM 32-21-01/401, Nose Landing Gear

 (17)
 AMM 32-21-01/601 Nose Landing Gear

 (18)
 AMM 32-31-00/501, Landing Gear Control

 (19)
 AMM 32-32-00/501, Wing Gear and Door Extension and Retraction

 (20)
 AMM 32-33-00/501, Body Gear and Door Extension and Retraction

 (21)
 AMM 32-34-00/501, Nose Landing Gear and Door Extension and Retraction

 (22)
 AMM 32-41-15/601, Landing Gear Brake Unit

 (23)
 AMM 32-45-03/601, Wheels

 (24)
 AMM 32-51-00/501, Nose Wheel Steering System

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 (25)
 AMM 72-31-01/601, LP Compressor Case and Vanes

 (26)
 AMM 72-31-04/601, LP Compressor Rotor Blades

 B.  Landing Gear Test
 S 582-069
 (1)  
Lift the airplane on jacks (AMM 07-11-01/201).

 S 722-070

 (2)  
Do a test of the landing gear.

 (a)  
Retract and extend the wing landing gear (AMM 32-32-00/501).

 (b)  
Retract and extend the body landing gear (AMM 32-33-00/501).

 (c)  
Retract and extend the nose landing gear (AMM 32-34-00/501).

 (d)  
Look for signs of interference, misalignment, or distortion.

 C.  Wing and Body Landing Gear Inspection
 S 212-071
 (1)  Examine the areas of the wing and body gear that follow:
 (a)  
the outer and inner cylinder lugs

 (b)  
the drag struts

 (c)  
the drag strut linkage

 (d)  
the side struts and their connections
 1) the side strut linkage

 (e)  
Make sure the shock strut pressure and fluid level are correct (AMM 32-11-02/301 and AMM 32-13-02/301). 1) Remove and disassemble the wing gear for an inspection if

 (AMM 32-11-02/401): a) the fluid level of the shock strut is low b) a high drag or a high side load landing occurs with a
 hard landing.
 2)  Remove and disassemble the body gear for an inspection if (AMM 32-13-02/401): a) the fluid level of the shock strut is low b) a high drag or a high side load landing occurs with a
 hard landing.
 (f)  
all bolt and pin connections in the wing landing gear (AMM 32-11-02/401)

 (g)  
all bolt and pin connections in the body landing gear (AMM 32-13-02/401)

 (h)  
The body gear connections of the support fitting to the vertical trunnion at the bulkhead of body station 1480.

 (i)  
If the wing or body gear wheels are removed because of a blown tire, do the steps that follow: 1) Examine the wheel structure (AMM 32-45-03/601). 2) Examine the brake assemblies (AMM 32-41-15/601).

 D.  Nose Landing Gear Inspection
 S 212-072
 (1)  Examine the areas of the nose landing gear that follow
 (AMM 32-21-01/601):

 (a)  The support fitting of the drag strut
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 05-51-05
 ALL  ú ú 04 Page 210 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
The trunnion fitting area of the outer cylinder
　
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