B.  
References

 (1)  
AMM 27-51-31/401, Outboard Flap Track Fairings

 C.  
Access

 (1)  
Location Zone 567 Outboard Flap Track Fairing, Outboard Flap, LH (Track No. 1) 565 Inboard Flap Track Fairing, Outboard Flap, LH (Track No. 2) 665 Inboard Flap Track Fairing, Outboard Flap, RH (Track No. 7)

 667  Outboard Flap Track Fairing, Outboard Flap, RH (Track No. 8)
 D.  Procedure
 S 026-002
 (1)  
Do this task: "Outboard Flap Track Fairing Removal" (AMM 27-51-31/401).

 S 226-003

 (2)  
Examine the parts which attach the outboard flap track fairing for worn areas:

 (a)  
Remove the parts.

 (b)  
Measure the parts with a micrometer or a vernier caliper.

 (c)  
Compare the dimensions you measured with the permitted dimensions shown in Fig. 601, 602 and 603.

 (d)  
Replace the parts which are not in the tolerance.

 (e)  
Install the parts.

 S 426-004
 (3)  Do this task: "Outboard Flap Track Fairing Installation" (AMM 27-51-31/401).
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MAINTENANCE MANUAL

SEE A  SNUBBER BLOCK
SEE B
TIEBOLT
TIEBOLT LOCK
TRANSMISSION ADJUSTABLE ROD
A
(2 LOCATIONS)
HINGE FITTING
A
BONDING JUMPER
FIXED FAIRING
MOVABLE FAIRING
ACCESS PLATE
A
Outboard Movable Flap Track Fairing Wear Limits Figure 601 (Sheet 1)
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MAINTENANCE MANUAL

UPPER DOOR LINK
FORWARD AFT DOOR
DOOR LINK LINK
DOOR FWD FITTING
SUPPORT
FITTING
B
B
FAIRINGS NO. 1 AND 8 LINKAGE SHOWN IN RETRACTED POSITION
B
FLAP TRACK
1. FLANGED BUSHING/BOLT
2. BEARING/BOLT 
3. BUSHING/BOLT  6.  BEARING/BOLT 
HINGE FITTING  HINGE LINK  5.  FLANGED BUSHING/BOLT 

FAIRING 7. BUSHING/BOLT4. FLANGED FAIRING
BUSHING/ 8. FLANGED BUSHING BUSHING/ BUSHING
A-A

Outboard Movable Flap Track Fairing Wear Limits
Figure 601 (Sheet 2)

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747-400
MAINTENANCE MANUAL

17.
BUSHING/ DOOR FITTING (FAIRINGS NO. 1

18.

AND 8 ONLY)
20. BUSHING/BOLT

14. BUSHING/ BOLT
21. BUSHING/
BUSHING

FLANGED BUSHING/ BUSHING
11. BEARING/BOLT
B-B
Outboard Movable Flap Track Fairing Wear Limits
Figure 601 (Sheet 3)

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747-400 MAINTENANCE MANUAL
DESIGN LIMITS WEAR LIMITS
PERMITTED MAXIMUM
DIAMETER
INDEX
WEAR DIAMETER
PART NAME DIM.
NO. MINIMUM MAXIMUM DIMENSION CLEARANCE INCHES INCHES INCHES INCHES (mm) (mm) (mm) (mm)
BUSHING FLANGED  ID  (12.70) 0.5000  (12.73) 0.5010  (12.81) 0.5045 
BEARING BOLT  ID OD  0.4995 (12.69) (12.66) 0.4985  0.5015 (12.74) (12.69) 0.4995  0.5045 (12.81) (12.57) 0.4950 
　
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