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A
747-400 MAINTENANCE MANUAL
 OUTBOARD FLIGHT SPOILERS - INSPECTION /CHECK
____________________________________________
 1.  General_______
 A.  There is one task in this procedure; an inspection of the outboard flight spoilers. To do the inspection, you measure the inner and outer diameters of the parts which are in the spoiler hinges and the control package connection. The parts include bushings, bearings, liners and bolts.
 B.  To do the check, you must remove the spoiler from the airplane and disassemble the hinges and the control package connection. You usually do this procedure before you install an outboard flight spoiler.
 TASK 27-61-02-206-001
 2.  Outboard Flight Spoiler Inspection__________________________________
 A.  Standard Tools and Equipment
 (1)  
Micrometer - 0 to 1 inch

 (2)  
Micrometer - 1 to 2 inch

 (3)  
Vernier caliper

 B.  
References

 (1)  
27-61-02/401, Outboard Flight Spoilers

 C.  
Access

 (1)  
Location Zone
 585 Spoiler No. 1
 584 Spoiler No. 2
 583 Spoiler No. 3
 582 Spoiler No. 4
 582 Spoiler No. 9
 583 Spoiler No. 10
 584 Spoiler No. 11
 585 Spoiler No. 12

 D.  
Procedure

 (1)  
Do this task: "Outboard Flight Spoiler Removal" (Ref 27-61-02/401).

 S 226-003

 (2)  
Examine the parts for worn areas:

 (a)  
Remove the parts.

 (b)  
Use a micrometer or a vernier caliper to measure the parts.

 (c)  
Compare the dimensions you measured with the permitted dimensions shown in Fig. 601.

 (d)  
Repair or replace the parts that are not in the tolerance.

 (e)  
Install the parts.

 S 026-002
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747-400 MAINTENANCE MANUAL
 S 426-004
 (3)  Do this task: "Outboard Flight Spoiler Installation" (Ref 27-61-02/401).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-61-02
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747-400 MAINTENANCE MANUAL
OUTBOARD FLIGHT SPOILERS
SEE A
OUTBOARD FLIGHT SPOILER
CONTROL PACKAGE PISTON ROD END
SEE E
WING REAR SPAR
HINGE NO. 3 1 SEE D
HINGE NO. 1
SEE B

FWD INBD
HINGE NO. 2 SEE C
1 THE HINGE NO. 3 IS ON THE INBOARD SIDE
OF THE LEFT WING AND THE OUTBOARD SIDE A
OF THE RIGHT WING.
Outboard Flight Spoilers Wear Limits Figure 601 (Sheet 1)
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 27-61-02
 ALL  ú ú 01 Page 603 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
OUTBOARD FLIGHT SPOILER

11.  BUSHING/BUSHING FLANGED  BOTTOM VIEW 

 
 
Figure 601 (Sheet 2) Outboard Flight Spoilers Wear Limits

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