percent by volume. f) Mix the sealant fully after the naphtha is added
 4)  Do these steps to apply the RTV560 or RTV106 to the repair area: a) Use a brush to apply the sealant in smooth and equal
 strokes in a back-and-forth direction.
 NOTE: Try to keep the strokes as smooth and equal
____ as possible.
 One layer of sealant is approximately 3-5 mils (0.003-0.005 inch) (0.076-0.127 mm).
 b)  Continue to apply the sealant until the depth is 0.063-0.093 inches (1.60-2.36 mm).
 5) Do these steps to clean the brush: a) The brush can only be used again to apply an RTV topcoat if it is correctly cleaned.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
WARNING: DO NOT GET THE METHYL ETHYL KETONE (MEK) IN YOUR
_______ MOUTH, EYES, OR ON YOUR SKIN. DO NOT BREATE THE FUMES FROM MEK. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS, FLAMES, AND HIGH TEMPERATURES. MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 b) Use MEK or naphtha to clean the brush. 6) Do these steps to cure the sealant:
 NOTE: You can cure the sealant at room temperatures or
____ at temperatures of up to 200°F (93°C).
 a) To cure at room temperatures, let the sealant dry for 28-36 hours or until the surface is no longer tacky. b) To cure the sealant at increased temperatures, follow these steps:
 1.
Let the sealant cure at room temperature for a

_ minimum of 1 hour.

 2.
Use an explosion-proof heat source to apply heat to

_
 the sealant.

 NOTE: Make sure the temperature is not higher
____ than 200°F(93°C).
 If it is necessary, use heat blankets to prevent damage to the adjacent engine components.
 3. The cure time at the higher temperature is
_ different with temperature and catalyst ratio.
 F. Put the Airplane Back to its Usual Condition
 S 414-026-C00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______
 THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY
 TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.

 (1)
Close the applicable thrust reverser half (AMM 78-31-00/201).

 (2)
Close the applicable fan cowl panel (AMM 71-11-02/201).

 (3)
Remove the DO-NOT-OPERATE tags from the start levers.

 S 414-030-C00
 S 864-037-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FAN DUCT PANELS - REMOVAL/INSTALLATION
______________________________________
 1.  General_______
 A.  This procedure has two tasks, to remove and install the fan duct panels The fan duct panels are found on the inner surface of the fan frame in between the fan frame struts. The procedure is almost the same for all eight panels
 B.  To replace the the fan duct panels, you must do the steps that follow: - open the fan cowl panel and thrust reverser half
 -replace the fan duct panel
 -close the fan cowl panel and thrust reverser half.
 TASK 72-33-03-004-001-C00
 2.  Remove the Fan Duct Panel (Fig. 401)_________________________
 A.  References
 (1)  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
　
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