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 A.  This procedure contains the task to do the inspection/check of the inboard aileron.
 B.  The procedure does not include instructions for access, removal, or replacement of the component after inspection of worn areas. Refer to the Inboard Aileron - Removal/Installation for instructions to do these tasks.
 TASK 27-11-01-206-001
 2.  Inboard Aileron Inspection/Check________________________________
 A.  Standard Tools and Equipment
 (1)
Micrometers, to measure internally and externally

 B.  
References

 (1)
27-11-01/401, Inboard Aileron

 (2)
IPC 27-11-01 Fig. 2

 (3)
IPC 27-11-12 Fig. 2

 (4)
SSM 27-11-01

 (5)
WDM 27-11-11

 C.  
Access

 (1)  
Location Zone
 579 Inboard Aileron, LH
 679 Inboard Aileron, RH

 D.  
Procedure

 (1)
Remove the inboard aileron (Ref 27-11-01/401).

 S 226-003

 (2)
Examine the inboard aileron (Fig. 601).

 (a)
Remove the parts to be examined.

 (b)
Measure the dimensions of these parts.

 (c)
Compare the part dimensions with the limit dimensions.

 (d)
If the part dimension is out of tolerance, replace the part.

 S 026-002
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A
747-400
MAINTENANCE MANUAL

SEE A
INBD
SEE B
SEE D
SEE C
2. BEARING/BOLT  8. FITTING/BOLT (2 LOCATIONS)  9. BEARING SUPPORT/BOLT 
1. FLANGED BOLT BUSHING/  3. BUSHING/BUSHING 
11. BEARING (2 LOCATIONS) SUPPORT/BOLT 
4. BUSHING/BOLT  10. FITTING/BOLT (4 LOCATIONS) 
A  A 
A  A-A 

Inboard Aileron Wear Limits
Figure 601 (Sheet 1)

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A

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MAINTENANCE MANUAL

BUSHING/PLAIN
BUSHING
B-B
(3 LOCATIONS)
NO. INDEX  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  PART WORN REPLACE  PART WORN REPAIR  INSTR REPAIR 
DIAMETER  PER-MITTED WEAR DIM.  ANCE CLEAR-MAX DIA 
MIN  MAX 
1  FLANGED BUSHING  ID  0.6245  0.6255  0.6290  0.0050  3 
BOLT  OD  0.6235  0.6240  0.6195  X  1 
2  BEARING  ID  0.6245  0.6250  0.6290  0.0050  2 
BOLT  OD  0.6235  0.6240  0.6195  X  1 
3  BUSHING  ID  0.9995  1.0005  1.0040  0.0050  3 
BUSHING  OD  0.9980  0.9990  0.9945  X  1 

Inboard Aileron Wear Limits
Figure 601 (Sheet 2)

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MAINTENANCE MANUAL

INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  WORN REPLACE PART  REPAIR WORN PART  REPAIR INSTR. 
DIAMETER  DIM. WEAR MAX  DIAM CLEAR-ANCE MAX 
MIN  MAX 
4  BUSHING  ID  0.6247  0.6255  0.6290  0.0050  X  1 
BOLT  OD  0.6235  0.6240  0.6195  X  1 
5  FLGD BUSHING  ID  0.7490  0.7505  0.7540  0.0050  X  1 
BOLT  OD  0.7485  0.7490  0.7445  X  1 
　
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