S 448-040-N00

 (4)  
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).

 TASK 72-33-02-308-060-N00
 3. Repair (Removal) of the Damaged Fan Exit Vane
_____________________________________________
 A. Consumable Materials
 (1)  
B00148 Methyl Ethyl Ketone (MEK)
 (PWA P11-005A)

 (2)  
A00482 Sealant, Silicone Rubber (PWA P09-014)

 (3)  
A00482 Sealant, Silicone Rubber (PWA P09-029) (optional to P09-014)

 (4)  
G02121 Tape, Heat Reflective Aluminum Foil
 (PWA P05-135)

 B.
References

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

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

 (3)  
AMM 72-33-02/601, Fan Exit Case and Vane

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

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 72-33-02
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
C. Access
 (1)  
Location Zone
 412 Engine 1 - Fan Exit Case
 422 Engine 2 - Fan Exit Case
 432 Engine 3 - Fan Exit Case
 442 Engine 4 - Fan Exit Case

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

 D.
Prepare for the Removal of the damaged Fan Exit Vanes

 S 018-041-N00
 (1)  Open the fan cowl panels (AMM 71-11-04/201).
 S 048-042-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSERS. ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO YOU AND DAMAGE TO EQUIPMENT.
 (2)  
Do the Deactivation Procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).

 S 018-043-N00

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

 S 018-044-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO YOU AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  
Open the thrust reversers (AMM 78-31-00/201).

 E.
Repair (Remove) the Damaged Fan Exit Vane (Fig. 802)

 (1)  
Find which vanes must be removed (AMM 72-33-02/601).

 S 028-046-N00

 (2)  
Cut the damaged vane at the edge of the flowpath surface ID and OD bases.

 (a)  
Make sure you do not damage other vanes.

 S 218-045-N00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b)  Keep the OD base attached to the outer base.
 S 028-047-N00
 (3)  
Carefully lift the leading and trailing edge of the base and remove
 the base from the pins.

 S 358-048-N00

 (4)  
Drill a 0.125 inch (3.175 mm) diameter hole through the center of
 the trailing edge hole to the flowpath surface of the ID vane base.

 S 118-049-N00
 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 A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS, FLAME AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (5)  
Clean the base, baseplate, inner case, and pins with MEK solvent and allow to dry for 15 minutes.

 S 398-050-N00

 (6)  
Apply sealant heavily to the ID surface of the base, the case
 cavity, and the pins.

 S 428-051-N00
　
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