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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 016-010-N00
 (3)  Open the core cowl panels (AMM 71-11-06/201).
 S 016-011-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  
Open the thrust reversers (AMM 78-31-00/201).

 D.  
Procedure

 S 216-012-N00
 (1)  
Do the inspection of the fuel filter element:

 (a)  
Remove the fuel filter element (AMM 73-11-02/401).

 (b)  
If the fuel filter element has a paper outer wrap, remove the paper outer wrap from around the fuel pump filter.

 (c)  
Examine the paper element for signs of damage or contamination.

 1)  If there is contamination, find the source of the contamination upstream of the fuel pump and repair as necessary.

 (d)
Install a new fuel filter element (AMM 73-11-02/401).

 NOTE: The fuel filter element can not be cleaned or used
____
 again.

 E.  Return the aircraft to its usual condition
 S 416-013-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  Close the thrust reversers (AMM 78-31-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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(2)  S 416-014-N00Close the core cowl panels (AMM 71-11-06/201).
 (3)  S 416-015-N00Close the fan cowl panels (AMM 71-11-04/201).
 (4)  S 446-016-N00Do the activation procedure for the thrust reversers (AMM 78-31-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL DISTRIBUTION VALVE - REMOVAL/INSTALLATION
______________________________________________
 1.  General
_______
 A.  This procedure gives the tasks for the removal and installation of the fuel distribution valve.
 B.  The fuel distribution valve is installed on brackets on the high pressure compressor (HPC) case at the 4 o'clock position.
 C.  You can get access to the fuel distribution valve when you open the right thrust reverser.
 TASK 73-11-03-004-001-N00
 2.  Fuel Distribution Valve Removal (Fig. 401)
_______________________________
 A.  Standard Tools and Equipment
 (1)  
Container - 1 gallon (4 liter) capacity, applicable to collect fuel

 (2)  
Jackscrews - 0.0190-32 (two are necessary)

 B.  
References

 (1)  
AMM 71-11-04/201, Fan Cowl Panels

 (2)  
AMM 71-11-06/201, Core Cowl Panels

 (3)  
AMM 78-31-00/201, Thrust Reverser System

 C.  
Access

 (1)  
Location Zone
 412 Engine 1 - HPC Case 4 o'clock
 422 Engine 2 - HPC Case 4 o'clock
 432 Engine 3 - HPC Case 4 o'clock
 442 Engine 4 - HPC Case 4 o'clock

 (2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4

 D.  
Prepare to Remove the Fuel Distribution Valve

 S 864-046-N00
 (1)  Make sure the applicable FUEL CONTROL switch is in the CUTOFF position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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