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(3)  
AMM 71-11-04/201, Fan Cowl Panels

 (4)  
AMM 71-11-06/201, Core Cowl Panels

 (5)  
AMM 78-31-00/201, Thrust Reverser System

 B.
Access

 (1)  
Location Zone 412 Engine 1 - High Pressure Compressor (HPC) Case, Diffuser and Combustor Case 422 Engine 2 - High Pressure Compressor (HPC) Case, Diffuser and Combustor Case 432 Engine 3 - High Pressure Compressor (HPC) Case, Diffuser and Combustor Case

 442  Engine 4 - High Pressure Compressor (HPC) Case, Diffuser and Combustor Case

 (2)  
Access Panel
 415 Left Thrust Reverser Half - Engine 1
 416 Right Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 426 Right Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 436 Right Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4
 446 Right Thrust Reverser Half - Engine 4

 C.
Procedure

 S 424-009-N00
 (1)  
Install the fuel tube:

 (a)  
Put the fuel tube on the engine.

 (b)  
Connect the coupling nuts or the flexible fittings
 (AMM 70-24-01/201).

 (2)  
Connect all clips, support clamps, and brackets.

 S 434-010-N00
 S 414-020-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.

 (3)  
Close the thrust reverser (AMM 78-31-00/201).

 (4)  
Close the core cowl panel (AMM 71-11-06/201).

 (5)  
Close the fan cowl panel (AMM 71-11-06/201).

 S 414-018-N00
 S 414-021-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(6)  S 444-019-N00Do the activation procedure for the thrust reverser (AMM 78-31-00/201).
 (7)  S 794-012-N00Do the test of the fuel tubes that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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FUEL BYPASS VALVE - REMOVAL/INSTALLATION
________________________________________
 1.  General
_______
 A.  This procedure gives the tasks for the removal and installation of the fuel bypass valve.
 B.  The fuel bypass valve is attached on the inboard side of the fuel pump at the 5 o'clock position. The fuel pump is attached on the forward face of the main gearbox.
 C.  You can get access to the fuel bypass valve when you open the left and right thrust reverser.
 TASK 73-11-07-004-001-N00
 2.  Fuel Bypass Valve Removal (Fig. 401)
_________________________
 A.  Standard Tools and Equipment
 (1)
Container - 5 gallon (20 liter) capacity, applicable to collect fuel

 B.  
Consumable Materials

 (1)
D00250 Petrolatum White, VV-P-236

 (2)
D00390 Oil - Engine

 (3)
G01505 Lockwire - MS20995

 C.  
References

 (1)
AMM 24-22-00/201, Manual Control

 (2)
AMM 71-11-04/201, Fan Cowl Panels

 (3)
AMM 71-11-06/201, Core Cowl Panels

 (4)
AMM 78-31-00/201, Thrust Reverser System

 D.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 5 o'clock 422 Engine 2 - Main Gearbox Fwd Face 5 o'clock 432 Engine 3 - Main Gearbox Fwd Face 5 o'clock 442 Engine 4 - Main Gearbox Fwd Face 5 o'clock
　
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