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_______ REVERSER. FAILURE TO BLEED THE AIR CAN CAUSE THE SPEED AT WHICH THE COWL MOVES TO BE IRREGULAR. THE REVERSER CAN QUICKLY CLOSE AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  Do these steps to remove the air in the opening system for the thrust reverser:
 CAUTION: MAKE SURE THE HAND PUMP IS FULL OF THE SPECIFIED ENGINE
_______ OIL. IF THE HAND PUMP IS NOT FULL OF THE SPECIFIED ENGINE OIL, THE THRUST REVERSER MAY NOT OPEN AND CLOSE CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (a)  
Make sure the hand pump is full of engine oil.

 (b)  
Close the return valve on the hand pump.

 (c)  
Connect the hand pump hose to the pressure manifold at the
 bottom of the torque box.

 (d)  
Operate the hand pump to slowly open the thrust reverser to
 50 percent of the fully open position.

 (e)  
Carefully open the return valve on the hand pump to slowly
 close the thrust reverser.

 (f)  
Do these steps three times:
 1) Close the return valve on the hand pump.
 2) Operate the hand pump to open the thrust reverser to the

 

 fully open position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
3)  Slowly open the return valve again to slowly close the thrust reverser half.
 (g)  Do these steps to measure the rate the thrust reverser closes. 1) Operate the hand pump to open the thrust reverser to the full open position. 2) Slowly open the return valve again to slowly close the thrust reverser half.
 3)  Monitor the time and motion while the thrust reverser half closes. a) The rate the thrust reverser closes must be more than
 10 seconds. b) The thrust reverser must close with a smooth movement with the return valve in the fully open position.
 S 014-053-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO
 PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

 (4)  Open the thrust reverser (AMM 78-31-00/201).
 (a)  Make sure the hold-open rods are fully extended and locked to hold the weight of the thrust reverser.
 S 794-039-N00
 (5)  
Examine the opening actuator, flex hoses, and fittings for leakage.

 F.  
Put the Airplane Back to Its Usual Condition

 S 414-040-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, YOU CAN CAUSE
 INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

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

 (2)  
Close the core cowl panels (AMM 71-11-06/201).

 (3)  
Close the fan cowl panels (AMM 71-11-04/201).

 S 444-042-N00

 (4)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 (5)  
Remove the DO-NOT-OPERATE tags from the thrust levers.

 S 414-041-N00
 S 414-051-N00
 S 864-050-N00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
THRUST REVERSER COWL OPENING ACTUATOR FLEX HOSES -
________________________________________________ INSPECTION/CHECK
________________
 1.  General_______
 A.  This procedure does a check of the flex hoses to find the damage, leakage or the rubbed areas.
 TASK 78-31-08-206-001-N00
 2.  Do the Inspection of the Thrust Reverser Cowl Opening Actuator Flex Hoses_________________________________________________________________________
 A.  References
 (1)
AMM 27-62-00/201, Speed Brake Control System

 (2)
AMM 71-11-04/201, Fan Cowl Panels

 (3)
AMM 71-11-06/201, Core Cowl Panels
　
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