(g)  
The Tube Supports for the Cooling Air Tube Inspection

 (h)  
The Heat Shield Inspection

 (i)  
The Blanking Plates Inspection

 B. References
 (1)  AMM 71-11-02/201, Fan Cowl Panels
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(2)  
AMM 72-54-00/801, Low Pressure Turbine

 (3)  
AMM 77-21-01/401, Exhaust Gas Temperature (EGT) Thermocouple Harness and Probe

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

 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

 D. Procedure
 S 016-014-C00
 (1)  Open the left and right fan cowl panels (AMM 71-11-02/201).
 S 016-015-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 reversers (AMM 78-31-00/201).
 E. At Flange of the LPT Case Inspection
 S 216-016-C00
 (1)  Examine the flange for cracks in the connecting bolt holes
 (Fig. 601):

 (a)  All cracks you find are not serviceable.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(b)  A maximum service extension of 10 cycles is permitted for one crack that connects two bolt holes, if there are no other cracks that go through the outer skin of the pressure vessel.
 S 216-017-C00
 (2)  Examine the flange for cracks that extend from a bolt hole to the outer edge of the flange (Fig. 601):
 (a)  Five cracks for each flange are permitted if there is a minimum of five holes between each crack.
 S 216-018-C00
 (3)  Examine the flange for cracks that extend from a bolt hole to the casing skin (Fig. 601):
 (a)  
All cracks you find are not serviceable.

 (b)  
A maximum service extension of 10 cycles is permitted for one crack into the skin 0.4 inch (10.2 mm) in length.

 S 216-019-C00
 (4)  Examine the flange for cracks in the flange at a location other than at the bolt holes (Fig. 601):
 (a)  Five cracks for each flange are permitted if they are not more than 0.25 inch (6.40 mm) in length and with a minimum distance of 5.0 inches (127.0 mm) between all other cracks.
 S 216-020-C00
 (5)  Examine the flange for cracks in the flange and (or) case skin radius (Fig. 601):
 (a)  All cracks you find are not serviceable.
 S 216-021-C00
 (6)  Examine the flange for nicks, scores and scratches (Fig. 601):
 (a)  All nicks, scores and scratches are permitted if you obey these limits: 1) They are not more than 1.0 inch (25.4 mm) in length. 2) They are not more than 0.010 inch (0.250 mm) in depth after
 all burrs are removed.
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