S 864-040

 (31)
 Do this task if pneumatic power is not necessary:  "Pneumatic Power Removal" (AMM 36-00-00/201).

 S 864-041

 (32)
 Do this task to depressurize hydraulic systems No. 1 and 4: "Hydraulic System Depressurization" (AMM 29-11-00/201).

 S 864-042

 (33)
 Do this task if electrical power is not necessary:  "Electrical Power Removal" (AMM 24-22-00/201).

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 27-81-02
 ALL  ú ú 01 Page 424 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 VARIABLE CAMBER FLAPS - INSPECTION/CHECK
________________________________________
 1.  General_______
 A.  This procedure contains the task to do the check of the variable camber flaps.
 B.  The procedure does not include instructions for access, or replacement of the component after inspection for worn areas. Refer to the Variable Camber Flaps - Removal/Installation for instructions to do these tasks.
 TASK 27-81-02-206-001
 2.  Variable Camber Flaps Inspection/Check______________________________________
 A.  Standard Tools and Equipment
 (1)  
Micrometers, to measure internally and externally

 B.  
References

 (1)  
AMM 27-81-02/401, Variable Camber Flaps

 (2)  
AIPC 27-81-02, Fig. 1

 (3)  
AIPC 27-81-02, Fig. 5

 (4)  
AIPC 27-81-02, Fig. 10

 (5)  
SSM 27-81-01, SSM 27-81-02, SSM 27-81-03, SSM 27-81-04, SSM 27-81-05, SSM 27-81-06

 (6)  
WDM 27-51-21, WDM 27-51-22, WDM 27-81-11, WDM 27-81-12, WDM 27-81-21, WDM 27-81-22, WDM 27-81-31, WDM 27-81-32, WDM 27-81-41, WDM 27-81-42, WDM 27-81-81, WDM 27-81-82

 C.  
Access

 (1)  
Location Zone
 522 Variable Camber Flap, LH
 523 Variable Camber Flap, LH
 524 Variable Camber Flap, LH
 525 Variable Camber Flap, LH
 526 Variable Camber Flap, LH
 532 Variable Camber Flap, LH
 533 Variable Camber Flap, LH
 534 Variable Camber Flap, LH
 535 Variable Camber Flap, LH
 536 Variable Camber Flap, LH
 537 Variable Camber Flap, LH
 622 Variable Camber Flap, RH
 623 Variable Camber Flap, RH
 624 Variable Camber Flap, RH
 625 Variable Camber Flap, RH
 626 Variable Camber Flap, RH
 632 Variable Camber Flap, RH
 633 Variable Camber Flap, RH
 634 Variable Camber Flap, RH
 635 Variable Camber Flap, RH
 636 Variable Camber Flap, RH
 637 Variable Camber Flap, RH

 D.  
Procedure

 (1)  
Do this task: "Variable Camber Flaps Removal" (AMM 27-81-02/401).

 S 026-002
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 27-81-02
 ALL  ú ú 01 Page 601 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
A
A
A
A
VARIABLE
CAMBER D
FLAP

D
B
B HC C H
G
F
F

E E
G I
I
A-A
Variable Camber Flap Wear Limits Figure 601 (Sheet 1)
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 27-81-02
 ALL  ú ú 01 Page 602 ú Dec 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
1. BUSHING/BOLT

8.
(2 LOCATIONS)
Variable Camber Flap Wear Limits Figure 601 (Sheet 2)
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