72-33-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FAN OUTLET GUIDE VANES AND SEALS - REMOVAL/INSTALLATION
_______________________________________________________
 1.  General
_______
 A.  This procedure has these tasks:
 (1)  
The removal of the fan outlet guide vanes (OGV) and their seals

 (2)  
The installation of the fan outlet guide vanes (OGV) and their seals.

 B.  The 80 OGV's are found in the secondary airflow between the fan blades and the fan frame struts.
 C.  There are two types of OGV's; composite and aluminum. All OGV's are interchangeable with each other.
 TASK 72-33-01-004-001-C00
 2.  Fan Outlet Guide Vanes and Seals Removal (Fig. 401)
________________________________________
 A.  References
 (1)  
AMM 71-11-02/201, Fan Cowl Panels

 (2)  
AMM 78-31-00/201, Thrust Reverser System

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

 (2)  
Access Panels 5738L/5739R Engine No. 1 - Fan Duct Cowl and Thrust Reverser Halves

 5838L/5839R  Engine No. 2 - Fan Duct Cowl and Thrust Reverser Halves
 C.  Prepare for the Removal
 S 014-002-C00
 (1)
Do this task: Open the Fan Cowl Panel (AMM 71-11-02/201).

 S 864-018-C00

 (2)  
Do this task: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).

 (3)
Do this task: Open the Thrust Reverser (AMM 78-31-00/201).

 S 014-019-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
3 O'CLOCK FAN FRAME STRUT (NO. 4)
OUTLET 
FWD  GUIDE VANES 
(80 LOCATIONS) 
SEE  B  C 
(EXAMPLE) 
A 
S-M56-MM-0974-(1)-01-C 
Fan Outlet Guide Vanes and Seals Installation 
Figure 401 (Sheet 1) 

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 72-33-01
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FAN INLET CASE (REF)
OUTLET
GUIDE
VANE

WASHER (2 LOCATIONS)
BOLT (2 LOCATIONS)
SEAL
ENGINES WITH COMPOSITE OGV'S (WITH CFMI SB 72-713)
B
B

Fan Outlet Guide Vanes and Seals Installation Figure 401 (Sheet 2)
F40970
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
D. Remove the OGV's
 S 034-003-C00
 (1)  
COMPOSITE OGV'S (ENGINES WITH CFMI SB 72-713); Remove the two bolts and two washers that attach each OGV outer platform to the fan inlet case.

 S 034-012-C00

 (2)  
ALUMINUM OGV'S (ENGINES WITH AND WITHOUT CFMI SB 72-796); Remove the two bolts and two saddles that attach each OGV outer platform to the fan inlet case.

 S 024-004-C00

 (3)  
Remove the OGV.

 (a)  
Lower the OGV inner platform down into the aft fairing recess on the splitter fairing.
　
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