(9)  
Delaminations

 (10)
 Misalignment

 (11)
 Interference

 (12)
 Other signs of damage.

 TASK 05-51-04-212-012
 2.  Phase I Inspection
__________________
 A.  References
 (1)  
27-51-00/201, Trailing Edge Flap System

 (2)  
27-51-22/401, Inboard Flap Inboard Track

 (3)  
27-51-25/401, Inboard Flap Outboard Track

 (4)  
27-51-27/401, Outboard Flap Track

 B.  Trailing Edge Flaps
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 S 862-015
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE FLAP ACTUATION SYSTEM.
_______ INJURY TO A PERSON OR DAMAGE TO EQUIPMENT CAN OCCUR IF THE FLAPS MOVE.
 (1)  
Do the deactivation procedure for the trailing edge flap system (Ref 27-51-00/201).

 S 212-014

 (2)  
Examine the trailing edge flap components as follows:

 (a)  
Examine the external skin of all trailing edge flaps.

 (b)  
Examine all flap support fittings and their attachment bolts. Also examine the surfaces between the front and rear wing spars near the flap support fittings.

 (c)  
Examine the main flap carriages, links and their bearings and mounting bolts.

 (d)  
Examine the flap tracks and their attachment points.

 (e)  
Examine the foreflap sequence carriages and their rollers.

 (f)  
Examine the fuse bolts at the forward attach points of the flap track, if: 1) The overspeed was 30 knots more than the placard speed for

 flap position 5 or less. 2) The overspeed was 15 knots more than the placard speed for for the flap position more than 5, and up through 10. 3) The speed was more than the placard speed for flap positions more than 10.
 C. Trailing Edge Panel
 S 212-019
 (1)  Examine the upper panel support of the fixed trailing edge at wing buttock line 163.
 TASK 05-51-04-212-017
 3. Phase II Inspection
___________________
 A. Trailing Edge Flaps
 S 212-022
 (1)  No Phase II inspection is necessary.
 B. Leading Edge Flaps
 S 862-020
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE FLAP ACTUATION SYSTEM.
_______ INJURY TO A PERSON OR DAMAGE TO EQUIPMENT CAN OCCUR IF THE FLAPS MOVE.
 (1)  Do the deactivation procedure for the trailing edge flap system (Ref 27-51-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 S 212-021
 (2)  Examine all leading edge flaps as follows:
 (a)  
Examine the external skins of the wing leading edge flaps.

 (b)  
Examine the linkages of the wing leading edge flaps.

 (c)  
Examine the rotary actuator arms of all leading edge flaps.

 (d)  
Examine the rib support tubes and their attachments on the fixed-wing leading edge.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

 HARD LANDING OR HIGH DRAG/SIDE LOAD LANDING CONDITION -
_______________________________________________________ MAINTENANCE PRACTICES (CONDITIONAL INSPECTION)
______________________________________________
 1.  General_______
 A. The Inspection
 (1)
　
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