72-56-00
 ALL  ú ú C01 Page 605 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
2) Replace the applicable studs (AMM 72-56-00/801).
 (b)  Studs that are loose: 1) Loose studs are not acceptable. 2) The applicable studs must be replaced within a maximum of
 30 cycles or 50 hours, whichever is less (AMM 72-56-00/801).
 L. Put the Airplane Back to Its Usual Condition.
 S 416-009-C00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSER. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  
Close the left and right thrust reverser (AMM 78-31-00/201).

 S 416-010-C00

 (2)  
Close the left and right fan cowl panels (AMM 71-11-02/201).

 TASK 72-56-00-216-011-C00
 3.  Turbine Frame Exhaust Struts and Attach Points and Mounting Lug Inspection__________________________________________________________________________
 A. General
 (1)  This task contains two procedures for the inspection. The
 precedures are as follows:

 -
The inspection of the mounting lug and strut attach point areas on the engine

 -
The inspection of the struts on the engine.

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

 (2)  
78-31-00/201, Thrust Reverser

 C. Access
 (1)  
Location Zones
 502/602 Left Fan Cowl Panels
 503/603 Right Fan Cowl Panels
 504/604 Left Thrust Reversers
 505/605 Right Thrust Reversers
 506 Engine No. 1
 606 Engine No. 2

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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 72-56-00
 ALL  ú ú C01 Page 606 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 ////////////////////////
D.  Prepare for the Inspection.
 S 016-012-C00
 (1)  Open the left and right fan cowl panel (AMM 71-11-02/201).
 S 016-013-C00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 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 left and right thrust reverser (AMM 78-31-00/201).
 E.  Make an Inspection of the areas of the engine mounting lug and strut attach points
 S 216-014-C00
 (1)  Examine the areas of the engine mounting lug and strut attach points (includes the adjacent welds and those heat affected areas) for these:
 (a)  
Cracks that extend from the bolt holes - Not serviceable.

 (b)  
Cracks in the areas of the engine mounting lug, includes the welds: 1) One for each area not more than 0.15 inches (3.80 mm) in

 length with a minimum distance of 1.5 inches (38.0 mm) from all other cracks.

 (c)  
Nicks, scores and scratches in the lug and strut areas:

 1)  No maximum number not more than 1.0 inch (25.4 mm) in length, not more than 0.020 inch (0.50 mm) in depth after the removal of all burrs, and with a minimum distance of
 1.0 inch (25.4 mm) between them.
 F.  Make an Inspection of the Struts on the Engine
 S 216-015-C00
 (1)  Examine the struts on the engine for these:
 (a)  
Cracks in the parent metal - Not serviceable.

 (b)  
Cracks in the welds - Not serviceable.

 (c)  
Nicks, dents and scores - All numbers not more than 0.020 inch

 (0.50 mm) in depth after the removal of all burrs.
　
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