S 868-108-C00
(12) Remove the DO-NOT-OPERATE tag from the start levels.
TASK 72-33-00-358-030-C00
6. ENGINES WITH ALUMINUM OUTLET GUIDE VANES; ENGINES WITH AND WITHOUT CFMI SB 72-796; Outlet Guide Vane Blend Repair
______________________________
A. General
(1) This task gives the necessary instructions to do a blend repair of the aluminum outlet guide vanes (OGV).
B. Consumable Materials
(1)
Abrasive cloth - silicone carbide, 150 or 180 grit size, CP2189 (or CP2191) (AMM 70-10-01/201)
(2)
Acetone - CP1039 (AMM 70-10-01/201)
C. References
(1)
AMM 71-11-02/201, Fan Cowl Panels
(2)
AMM 72-33-01/401, Fan Outlet Guide Vanes and Seals
(3)
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 018-031-C00
(1) Open the applicable fan cowl panel (AMM 71-11-02/201).
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 018-032-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).
S 028-033-C00
(3)
Remove the outlet guide vane (OGV) (AMM 72-33-01/401).
S 228-034-C00
(4)
Examine the location and dimension of the defects on the OGV and compare with the repair limits (Fig. 806).
S 358-035-C00
(5)
Use the abrasive cloth and blend repair the vane with your hand.
(a)
Remove at least 0.01 inch (0.25 mm) more material than the defect depth.
(b)
After the repair, the leading/trailing edge contour must be at least equal to the original contour and thickness.
(c)
If the distance between two blended areas on the leading or trailing edges is less than or equal to 10 times the depth of repair, then blend out the bottom of both repairs tangentially.
S 118-036-C00
(6)
Clean the OGV with a clean cloth and acetone.
S 238-037-C00
(7)
Do a fluorescent penetrant inspection of the repaired areas (AMM 70-40-01/201).
(a) No cracks are permitted.
(8)
Do a spot touch-up of the oxide film coating on the repaired area.
S 378-038-C00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
BLEND AREA ORIENTATION
0.04
(1.0) UNIMPORTANT DIMENSION H
MAXIMUM SMALLER THAN DIMENSION 2J DIMENSION H + DIMENSION J
1.2
MAXIMUM (30)
____ B-B
NOTE: DIMENSION ARE IN INCHES WITH MILLIMETERS IN PARENTHESES.
S-M56MM-02075-00-B
Outlet Guide Vane Repair Limits
Figure 806
C86093
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72-33-00 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 ENGINE 发动机 2(39)
