A
757
MAINTENANCE MANUAL
(2)
AMM 12-11-03/301, Fuel Sump Draining
(3)
AMM 20-41-00/201, Static Grounding
(4)
AMM 24-22-00/201, Electrical Power Control
(5)
AMM 27-81-00/201, Leading Edge Slat System
B.
Access
(1)
Location Zone
621 Leading Edge to Front Spar (Right)
(2)
Access Panel
621GB Fueling Station Door (Right)
C.
Procedure
S 212-045
WARNING: DO NOT OPERATE THE HF COMMUNICATION SYSTEM OR WEATHER RADAR
_______ DURING THE DEFUELING OPERATIONS. THE HF COMMUNICATION SYSTEM OR WEATHER RADAR COULD CAUSE AN EXPLOSION TO OCCUR.
CAUTION: DO NOT OPERATE THE HYDRAULIC SYSTEM IF THERE IS LESS THAN 600
_______ US GALLONS OF FUEL IN EITHER MAIN FUEL TANK. THE HYDRAULIC SYSTEM CAN BECOME TOO HOT IF THE HEAT EXCHANGER IS NOT IN FUEL.
(1)
Make sure the airplane and the fuel truck are grounded and bonded (AMM 20-41-00/201).
S 862-046
(2)
Supply electrical power (AMM 24-22-00/201).
S 862-047
(3)
Make sure these circuit breakers on the main power distribution panel, P6, are closed:
(a)
6E4, FUELING QTY
(b)
6E5, FUELING CONTROL
(c)
6E6, FUELING VALVE
(d)
6F14, L FUEL OVRD PUMP
(e)
6F20, R FUEL OVRD PUMP
(f)
6H14, L AFT FUEL BOOST PUMP
(g)
6H17, R FWD FUEL BOOST PUMP
(h)
6H20, R AFT FUEL BOOST PUMP
(i)
6H23, L FWD FUEL BOOST PUMP
S 862-048
(4)
Make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:
(a)
11C34, FUEL QTY 1 or FUEL QTY L
(b)
11L19, FUEL QTY 2 or FUEL QTY R
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A 757 MAINTENANCE MANUAL
(5) S 862-049Make sure these circuit breakers on the APU external power panel, P34, are closed: (a) 34A9, FLNG VALVES (b) 34A10, FUELING QTY (c) 34A11, FLNG CONT
S 862-002
WARNING:_______ DO THE DEACTIVATION PROCEDURE FOR THE LEADING EDGE SLATS (AMM 27-81-00/201). ACCIDENTAL SLAT OPERATION COULD CAUSE INJURY TO PERSONS.
(6) Do the deactivation procedure for the leading edge slats (AMM 27-81-00/201).
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