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 ALL  ú ú C02 Page 829 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
WARNING:_______ ACID SOLUTIONS ARE VERY ACTIVE AND CAUSE SERIUOS BURNS.
 TO PREVENT INJURY, DO NOT LET THE ACID TOUCH YOUR SKIN,
 EYES AND CLOTHING.  DO NOT BREATH THE VAPORS.
 USE A FACE SHIELD, GLOVES, PROTECTIVE CLOTHING AND
 PROTECTIVE SHOES.
 CAUTION:_______ A FIXTURE IS RECOMMENDED WHEN THE SOLUTION IS APPLIED WITH
 A BRUSH OR A SPONGE TO PREVENT DAMAGE.  DO NOT SPLASH THE
 SOLUTION ONTO METALS THAT ARE NOT ALUMINIUM.  THE SOLUTION

 IS VERY CORROSIVE.
 (a)  Rub the surface using a stainless alloy plier and a swab that is wet with the acid solution.
 NOTE: If it is necessary, do this procedure again to get the
____ necessary effect. Wait about one minute between two applications. Usually the coating takes 1 to 10 minutes to form fully.
 (b)  
Put the OGV fully in a hot water bath at 140°F (60°C) to rinse it.

 (c)  
Dry the OGV using clean dry air or an oven at 160°F (70°C).

 (d)  
Make sure the coating has a golden iridescent color.

 (e)  
If the coating is powdery, remove the coating and do the application again.

 NOTE: A powdery coating is a sign that the treatment was done
____ too long
 S 428-039-C00
 (9)  Install the OGV (AMM 72-33-01/401).
 S 418-040-C00
 WARNING: OBEY THE INSTRUCTIONS IN THIS PROCEDURE WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO THE EQUIPMENT CAN OCCUR.
 (10)
 Close the applicable thrust reverser (AMM 78-31-00/201).

 (11)
 Close the applicable fan cowl panel (AMM 71-11-02/201).

 S 418-041-C00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 72-33-00
 ALL  ú ú C01 Page 830 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TASK 72-33-00-358-120-C00
 7.  ENGINES WITH COMPOSITE OUTLET GUIDE VANES; ENGINES WITH CFMI SB 72-713; Outlet Guide Vane Tape Repair_____________________________
 A.  General
 (1)  This task gives the necessary instructions to do a speed tape repair of the composite outlet guide vanes.
 B.  Consumable Materials
 (1)  
Acetone - CP1039 (AMM 70-10-01/201)

 (2)  
Speed tape - CP2515 (AMM 70-10-01/201)

 C.  References
 (1)  
AMM 71-11-02/201, Fan Cowl Panels

 (2)  
AMM 72-33-00/601, Fan Frame

 (3)  
AMM 72-33-01/401, Fan Outlet Guide Vanes and Seals

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

 D.  Access
 (1)  
Location Zones
 506 Engine No. 1 - Fan Frame
 606 Engine No. 2 - Fan Frame

 (2)  
Access Panels
 5737L/5746L Engine No. 1 - Fan Cowl Panels
 5738L/5739L Engine No. 1 - Thrust Reverser Halves
 5837R/5846R Engine No. 2 - Fan Cowl Panels
 5838R/5839R Engine No. 2 - Thrust Reverser Halves

 

 E.  Procedure
 S 018-121-C00
 (1)  Open the applicable fan cowl panel (AMM 71-11-02/201).
 S 018-122-C00
 WARNING: OBEY THE INSTRUCTIONS IN THIS PROCEDURE WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO THE EQUIPMENT CAN OCCUR.
 (2)  
Open the applicable thrust reverser (AMM 78-31-00/201).

 (3)  
Remove the outlet guide vane (OGV) (AMM 72-33-01/401).

 S 228-124-C00

 (4)  
To make sure the OGV is in the repairable limits, do this task: Outlet Guide Vane (OGV) Inspection (AMM 72-33-00/601).

 S 358-125-C00

 (5)  
Use a cutter to remove any polyurethane residues and loose fibers. Do this until the OGV has a smooth and continuous profile without any sharp edges.

 S 028-123-C00
　
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