72-34-01
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C17217
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(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

 D.
Prepare for the Procedure

 S 044-003-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  
Do the deactivation procedure for the thrust reverser for ground
 maintenance (AMM 78-31-00/201).

 S 014-004-N00

 (2)  
Open the fan cowl panels (AMM 71-11-04/201).

 S 014-005-N00

 (3)  
Open the core cowl panels (AMM 71-11-06/201).

 S 014-006-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO
 PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

 (4)  
Open the thrust reversers (AMM 78-31-00/201).

 E.
Procedure

 S 024-007-N00
 (1)  
Do the steps that follow to remove the outer liner segments:

 (a)  
With the No. 10 Torq-set Drive, remove the screws that attach the outer liner segment to the intermediate case.

 (b)  
Cut the sealant at the edges of the outer liner segment.

 CAUTION: DO NOT USE A TOOL TO LIFT THE OUTER LINER SEGMENT FROM THE
_______ INTERMEDIATE CASE. IF YOU USE A TOOL, YOU CAN CAUSE DELAMINATION OF THE OUTER LINER SEGMENT.
 (c)  
Remove the outer liner segment.

 (d)  
If you will use this outer liner segment again, carefully remove all of the sealant with a putty knife.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 72-34-01
 ALL  ú ú N01 Page 404 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(e)  
Mechanically remove the old sealant from the brackets that the liner attaches to and from the mating surfaces of the intermediate case.

 (f)  
Do the removal steps again for all the remaining liner segments.

 TASK 72-34-01-404-008-N00
 3.  Install the Fan Exit Liner Segments (Fig. 401)___________________________________
 A. Consumable Materials
 (1)  
A00482 Sealant - Silicone Rubber, PWA 36003

 (2)  
B00148 Solvent - Methyl Ethyl Ketone (MEK)

 (3)  
D00137 Engine Oil - PWA 521B

 (4)  
G00033 Cheesecloth - Unsized

 (5)  
G00983 Paper - Kraft, Medium or Light Duty

 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 Zones
 411 Engine (Left)
 421 Engine (Right)

 (2)  
Access Panels
 415AL Fan Reverser (Left)
 416AR Fan Reverser (Right)
 425AL Fan Reverser (Left)
 426AR Fan Reverser (Right)

 D.
Install the Fan Exit Lining Segments

 S 824-009-N00
 (1)  
Attach the liner to the intermediate case as follows:

 (a)  
Apply engine oil to the threads of the screws.

 (b)  
Attach the liner with the screws.

 (c)  
Torque the screws to 36-40 pound-inches (4.1-4.5 Newton-meters).

 S 114-016-N00
 (2)  Clean the parts of the bracket, liner, and intermediate case that the sealant will touch.
 WARNING: DO NOT GET METHYL ETHYL KETONE (MEK) IN YOUR MOUTH, OR
_______ EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK. PUT ON PROTECTIVE SPLASH GOGGLES AND GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS, FLAMES, AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
　
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