S 014-024

 (7)  
Disconnect one end of the tie link and turn the hand-wheel of the installation tool to expand the tool until the pre-load is completely removed from the torque fitting.

 (8)  
Disconnect the diagonal tie rods from ribs No. 1 and 2.

 S 014-025
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747-400 MAINTENANCE MANUAL
 S 164-026
 (9)  
Remove all sealant from the upper surface of the panel to expose the fasteners attaching the ribs to the panel.

 S 024-030

 (10)
 Remove all fasteners from ribs No. 1 and 2.

 S 024-028

 (11)
 Remove all fasteners that attach the panel to the rib and wing-to-body fillet fairing adjacent to the body.

 S 024-029

 (12)
 Remove all fasteners that attach the panel to the rib at approximately BL 255, BL 235 and spoiler support beam.

 S 024-031

 (13)
 Remove all fasteners that attach the panel leading edge to the rib aft of the wing landing gear support beam.

 S 024-032

 (14)
 Remove the panel from the airplane.

 S 024-033

 (15)
 Remove hardware from the panel for installation to the new panel.

 TASK 57-22-01-414-017
 3.  Trailing Edge Panel Installation________________________________
 A. References
 (1)  
AMM 57-22-01/501, Fixed Trailing Edge Upper Panel

 (2)  
SRM 51-40-09

 (3)  
SRM 51-70-06

 (4)  
SOPM 20-10-06

 B. Equipment
 (1)  
G57003-1 Rib Installation Turnbuckle (Supersedes MIT65B13962-1).

 (2)  
G27001-1 - Spoiler Lock-Out Tool

 C. Consumable Materials
 (1)  
Sealant, BMS 5-95 (AMM 20-30-05/201)

 (2)  
Enamel Paint, BMS 10-11, Type II, Color 707 Gray (AMM 20-30-02/201)

 (3)  
Glass Fabric, BMS 9-3, Type H2 (AMM 20-30-04/201)

 (4)  
Alodine or Iridite (AMM 20-30-02/201)

 (5)  
Sandpaper, 150 grit, Aluminum Oxide (AMM 20-30-04/201)

 (6)  
Sandpaper, 240 grit, Aluminum Oxide (AMM 20-30-04/201)

 D. Procedure
 S 214-056
 (1)  First, inspect the ribs and Trailing Edge Beam for a machined step or joggle under the trailing edge panel as shown in Fig. 402.
 (a)  If no step or joggle is present, shims will be required in those areas.
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MAINTENANCE MANUAL

 (2)  S 424-057Install the removed hardware from the old panel to the new panel in accordance with Service Bulletin 747-57-2289.
 (3)  S 424-058Make shims, if necessary, as shown in Fig. 402. (a) Measure the space between the bottomn surface of the trailing edge panel and the top surface of the trailing edge beam.
 NOTE:____ The area of the trailing edge panel with the internal plate is .080 inch thicker than the adjacent areas of the trailing edge panel.
 (b) (c)  Measure the space between the bottom surface of the trailing edge panel and the top surface of the rib.Make a shim of 2024-T3 aluminum, 1.5 inches wide.
 NOTE:____ You can make a shim from laminated shim stock.
 1) 2)  If you make the shim in more than one piece, make the shim long enough that a minimum of four fasteners will go through it.Make the minimum thickness of the shim 0.005 inch and maintain 0.003 inch clearance between the shim and
 (d) (e)  structure. 3) Make the shim the length necessary to get the correct fit.Apply a chemical conversion coating (Alodine or Iridite) to the shim.Apply one layer of BMS 5-95, color 707 Gray to the shim. 1) Let the enamel dry.
　
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