S 412-025

 (4)  
Close the access panel on the lower wing surface.

 S 412-101

 (5)  
Install the access panel on the upper wing surface.

 S 092-026

 (6)  
Remove the safety device and safety harness installed on the receptacle on the wing upper surface.

 TASK 27-11-13-002-027
 4.  Outboard Aileron Power Control Package Filter Removal_____________________________________________________
 A. Special Tools and Equipment
 (1)  
OHME65B80518-1 Sling Assembly Hoist

 (2)  
6ME65B02100-1 Outboard Aileron Lock

 (3)  
24MIT65B00002 Safety Device for Wing and Stabilizer

 B.
References

 (1)  
06-09-08/201, Wing Access Doors and Panels

 (2)  
24-22-00/201, Manual Control

 (3)  
29-11-00/201, Main Hydraulic Supply System

 (4)  
IPC 27-11-13, Fig. 5

 C.
Access

 (1)  
Location Zone
 592 Outboard Aileron, LH
 692 Outboard Aileron, RH

 (2)  
Access Panel 591AB Outboard Aileron, Lower Wing Surface, LH 591BB Outboard Aileron, Lower Wing Surface, LH 591CB Outboard Aileron, Lower Wing Surface, LH 591DB Aileron Actuator, Lower Wing Surface, LH 591EB Outboard Aileron, Lower Wing Surface, LH 591FB Outboard Aileron, Lower Wing Surface, LH 591AT Aileron Actuator, Upper Wing Surface, LH 691AB Outboard Aileron, Lower Wing Surface, RH 691BB Outboard Aileron, Lower Wing Surface, RH 691CB Outboard Aileron, Lower Wing Surface, RH 691DB Aileron Actuator, Lower Wing Surface, RH 691EB Outboard Aileron, Lower Wing Surface, RH 691FB Outboard Aileron, Lower Wing Surface, RH 691AT Aileron Actuator, Upper Wing Surface, RH

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-11-13
 ALL  ú ú 04 Page 210 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 D. Prepare for Removal
 S 862-028
 (1)  
Do this task: "Supply Electrical Power" (Ref 24-22-00/201).

 S 862-029

 (2)  
Set the FLT CONTROL HYD POWER - WING VALVE switches No. 1, 2, 3 and 4 on the P461 Pilot's Overhead Maintenance Panel to SHUTOFF.

 S 862-031

 (3)  
For the applicable system, open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P180 DC Power Distribution Panel
 1) 180H7 LATERAL CONT VALV SYS 1
 2) 180E6 LATERAL CONT VALV SYS 2
 3) 180H22 LATERAL CONT VALV SYS 3
 4) 180E21 LATERAL CONT VALV SYS 4

 S 862-032
 (4)  
Do this task: "Hydraulic System Depressurization"
 (Ref 29-11-00/201).

 S 012-033

 (5)  
Open the access panel below the power control package.

 S 492-034

 (6)  
Attach a safety device to the receptacle on the wing upper surface, forward of the power control package of the outboard aileron.

 E.
Procedure

 S 022-036
 (1)  
Remove the filter (Fig. 201):

 (a)  
Put an applicable container below the control package to catch fluid leakage.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-11-13
 ALL  ú ú 04 Page 211 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
Remove the filter housing (29).

 (c)  
Pull the filter (28) and the filter adapter (24) from the power control package (1).

 (d)  
Remove the adapter (24) from the filter (28).

 TASK 27-11-13-402-037
 5.  Outboard Aileron Power Control Package Filter Installation__________________________________________________________
 A. Special Tools and Equipment
 (1)  
OHME65B80518-1 Sling Assembly Hoist

 (2)  
6ME65B02100-1 Outboard Aileron Lock

 (3)  
24MIT65B00002 Safety Device for Wing and Stabilizer
　
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