(3)  
Pressure Gage - 0-50 psig |1% accuracy with hose and fittings

 B.  References
 (1)  
AMM 06-44-00/201, Wings (Major Zones 500 and 600) Access Doors and Panels

 (2)  
AMM 24-22-00/201, Electrical Power - Control

 (3)  
AMM 31-41-00/201, Engine Indication and Crew Alerting System (EICAS)

 (4)  
AMM 32-09-02/201, Air/Ground Relays

 (5)  
AMM 36-00-00/201, Pneumatic - General

 (6)  
AMM 78-31-00/201, Thrust Reverser System

 C.  Access
 (1)  
Location Zones
 521 Leading edge to front spar (left)
 522 Slat No. 4 (left)

 (2)  
Access Panels
 521AB Fixed lower wing panel
 522BL Fixed upper wing panel

 D.  Prepare for the Test (Fig. 501)
 S 865-143
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OFF THE THRUST REVERSER. ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).

 (2)
Remove the fixed upper wing panel 522BL (AMM 06-44-00/201).

 (3)
Remove the fixed lower wing panel 521AB (AMM 06-44-00/201).

 (4)  
Supply electrical power (AMM 24-22-00/201).

 S 015-003
 S 015-004
 S 865-005
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A

757 MAINTENANCE MANUAL
 S 865-006
 (5)  
Make sure the ISOLATION VALVE switch-light on the P5 panel is in the OFF position.

 S 865-007

 (6)  
Make sure the WING ANTI-ICE switch-light on the P5 panel is in the OFF position.

 S 495-008
 WARNING:_______YOU MUST USE EYE AND EAR PROTECTIVE DEVICES. THE HOT AIR IN
 THE PRESSURIZED DUCTS CAN CAUSE INJURY TO PERSONS.

 CAUTION: DO NOT USE A GROUND AIR SUPPLY THAT IS HOTTER THAT 200°F WHEN

_______ THE AIRPLANE IS IN FLIGHT MODE. THE HOT AIR IN THE WING TAI DUCT CAN CAUSE DAMAGE TO THE LEADING EDGE PANELS.
 (7)  To supply pneumatic power, hold the left pneumatic service connector open, and connect the air supply to the left pneumatic service connector . There are alternate ways for providing pneumatic power using a ground air sourse, operating the auxiliary power unit (APU), or operating an engine (AMM 36-00-00/201).
　
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