(10)
 Supply electrical power to the airplane (AMM 24-22-00/201).

 TASK 28-21-01-004-008
 4.  Remove the Poppet Assembly (Fig. 401)__________________________
 A. References
 (1)  
AMM 06-44-00/201, Wings (Major Zones 500 and 600) Access Doors and Panels

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

 (3)  
AMM 27-81-00/201, Leading Edge Slat System

 (4)  
AMM 28-26-00/201, Defueling

 B.
Equipment

 (1)  
Container - Fuel Resistant, 2 Gallon (7.57 Liters)

 C.
Access

 (1)  
Location Zone
 621 Leading Edge to Front Spar (Right)

 (2)  
Access Panel
 621GB Fueling Station Door (Right)

 D.
Procedure

 S 214-074
 (1)
Make sure the airplane is grounded to an approved ground.

 (2)
Remove electrical power from the airplane (AMM 24-22-00/201).

 S 494-076

 (3)  
Disconnect the airplane battery and attach OPEN FUEL TANK - DO NOT CONNECT sign.

 S 494-077

 (4)  
Put ropes around the fueling station area and install DANGER - OPEN FUEL TANKS signs.

 S 914-075
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-21-01
 ALL  ú ú 01 Page 405 ú May 20/98

A
757 MAINTENANCE MANUAL
 S 864-078
 WARNING: DO THE DEACTIVATION PROCEDURE OF THE LEADING EDGE SLAT (AMM
_______ 27-81-00/201). IF THE LEADING EDGE SLAT OPERATES ACCIDENTALLY, INJURY CAN OCCUR.
 (5)  
Do the deactivation procedure of the leading edge slats (AMM 27-81-00/201).

 S 144-079

 (6)  
Open the fueling station door, 621GB (AMM 06-44-00/201).

 S 144-080
 WARNING: WAIT 90 MINUTES AFTER REFUELING THE AIRPLANE BEFORE YOU DRAIN
_______ THE REFUELING ADAPTER. IF YOU DRAIN THE REFUELING ADAPTER BEFORE 90 MINUTES, PRESSURIZED FUEL CAN CAUSE AN INJURY OR A FUEL LEAK.
 (7)  
Drain the remaining fuel from the refueling adapter.

 (a)  
Put a container (2 gallon, 7.57 liter) below the refueling adapter to catch the fuel.

 (b)  
Push the poppet valve installed in the refueling adapter in slowly.

 (c)  
Let the fuel drain from the refueling adapter and the refueling manifold.

 S 034-012
 (8)  
Remove the screws (7 thru 12) that attach the fueling adapter to the adapter body (View B).
　
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