(2)  
24-22-00/201, Manual Control

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

 (4)  
IPC 27-11-12, Fig. 5

 B.
Access

 (1)  
Location Zone
 579 Inboard Aileron, LH
 679 Inboard Aileron, RH

 (2)  
Access Panel
 573CB Hydraulic, LH
 573AB Inboard Aileron Actuator, LH
 573BB Inboard Aileron Actuator, LH
 673CB Hydraulic, RH
 673AB Inboard Aileron Actuator, RH
 673BB Inboard Aileron Actuator, RH

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 27-11-12
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A
747-400 MAINTENANCE MANUAL
 C. Prepare for Removal
 S 862-043
 (1)  
Do this task: "Supply Electrical Power" (Ref 24-22-00/201).

 S 862-044

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

 S 862-046

 (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 862-047
 (4)  
Do this task: "Hydraulic System Depressurization"
 (Ref 29-11-00/201).

 S 012-048

 (5)  
Open the access panels of the hydraulic (573CB - left wing, 673CB -right) and the power control package (573AB and 573BB - left wing, 673AB and 673BB - right) in the lower surface of the wing, forward of the aileron (AMM 06-09-08/201).

 D.
Procedure

 S 022-049
 (1)  
Remove the filter (Fig. 201, Section D-D):

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

 (b)  
Remove the filter housing.

 (c)  
Pull the filter from the power control package.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
 TASK 27-11-12-402-082
 7.  Aileron Power Control Package Filter Installation_________________________________________________
 A. Consumable Materials
 (1)
G00062 Fluid - Hydraulic, Fire-Resistant, BMS 3-11

 (2)
D00054 Lubricant - Assembly, Skydrol, MCS352

 B.
Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 15 | Filter (FWD) | 27-11-12 | 05 | 80 | | | 15 | Filter (AFT) | | | 150 | | | 51 | Backup Ring (FWD) | | | 90 | | | 51 | Backup Ring (AFT) | | | 160 | | | 52 | Packing (FWD - Lower) | | | 85 | | | 52 | Packing (FWD - Upper) | | | 95 | | | 52 | Packing (AFT - Lower) | | | 155 | | | 52 | Packing (AFT - Upper) | | | 16 | | | 53 | Backup Ring (FWD) | | | 100 | | | 53 | Backup Ring (AFT) | | | 170 | | | 54 | Filter Housing (FWD) | | | 75 | | | 54 | Filter Housing (AFT) | | | 145 | 2......…........…...................................…...........….....…........1

 C.
References

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

 (2)
12-12-01/301, Hydraulic System

 (3)
24-22-00/201, Manual Control

 (4)
29-11-00/201, Main Hydraulic Supply System

 D.
Access

 (1)  
Location Zone
 579 Inboard Aileron, LH
 679 Inboard Aileron, RH

 (2)  
Access Panel
　
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