(a)
The extension of the flaps

 (b)
The extension of the spoilers

 (c)
The installation of the support equipment

 (d)
The removal of the foreflap.

 (2)
The inboard foreflap installation procedure has these parts:

 (a)
An examination of the parts for worn areas

 (b)
The installation of the support equipment

 (c)
The installation of the foreflap

 (d)
The retraction of the flaps

 (e)
The retraction of the spoilers.

 B.  
You can remove and install the inboard foreflap independently of the inboard midflap and aftflap.

 TASK 27-51-02-004-001
 2.  Inboard Foreflap Removal (Fig. 401)________________________
 A.  Special Tools and Equipment
 (1)
10OHME65B00116 Trailing Edge Flap Spreader Bar

 (2)  
10ME65B00116 Inboard Foreflap Strongback (Part of Inboard Trailing Edge Flap Strongback Kit 18ME65B00116)

 (3)
G27001-1 Spoilers No. 5 and 8 Locking Tool

 B.  
Standard Tools and Equipment

 (1)
Load Positioner (for 270 Pounds (122 kg)), 3100T22, McMaster-Carr

 P.O.
 Box 54960, Los Angeles, California 90054

 C.  
References

 (1)
AMM 29-11-00/201, Main Hydraulic Supply System

 (2)
AIPC 27-51-06, Fig. 1 (Installation)

 (3)
AIPC 57-52-06, Fig. 1 (Assembly)

 D.  
Access

 (1)  
Location Zone
 576 Inboard Flap Foreflap, Left
 676 Inboard Flap Foreflap, Right

 E.  
Prepare for the Removal

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A

747-400
MAINTENANCE MANUAL

A 
SEE  B 
C 
A 
FWD 
C 
SEE  C 
SEE  A 

FOREFLAP1. 
5. BOLT  WASHER6. 
MIDFLAP 
LEVER FOREFLAP2. 
MIDFLAP TRACK (3 LOCATIONS) WASHERS4.  3.  NUT 
A 
Figure 401 (Sheet 1) Inboard Foreflap Installation 

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
FOREFLAP FITTING 1. FOREFLAP
13. INNER
CLAMP-UP
WASHER

12. WASHER  7. BUSHING
8. WASHER
11. NUT
9.
 BOLT

10.
 OUTER
CLAMP-UP B
WASHER

B
HOOK
CARRIAGE AND TOGGLE
THE OUTBOARD FLAP TRACK IS SHOWN SYMMETRICAL ABOUT THE FLAP TRACK CENTERLINE (THE INBOARD FLAP TRACK IS EQUIVALENT)
B
DIMENSION X
TRANSMISSION
UNIVERSAL
JOINT

STOP
UNIVERSAL BALL SCREW
FWD JOINT NUT
D
SEE D BALL SCREW NUT
C
Inboard Foreflap Installation Figure 401 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

9. BOLT
8. WASHER
TRAILING  C-C
EDGE
Inboard Foreflap Installation
Figure 401 (Sheet 3)

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