(a)
the FWD boost pump switch for the No. 2 tank

 (b)
the AFT boost pump switch for the No. 2 tank.

 S 715-125
 CAUTION: IF THE FUEL FLOW DECREASES AND YOU THINK AN ENGINE FLAMEOUT
_______ WILL OCCUR, STOP THE ENGINE. DAMAGE TO THE ENGINE CAN EASILY OCCUR.
 (15) Monitor these quantities to make sure the engine operates with the correct limits for low idle operation (AMM 71-00-00/201):
 (a)  
RPM - N2: 59%
 N1: 21.5%

 (b)
FF (Fuel Flow) - 550-950 PPH (250-430 KGPH)

 (c)
EGT - 450-650 degrees C

 (d)
OIL PRESS - 13 to 35 psi

 S 715-194
 (16)
 Monitor N1, N2, and the fuel flow to see if the fuel flow rate decreases or changes quickly.

 S 715-179

 (17)
 Move the thrust lever for the No. 2 engine forward to the position for 90% takeoff power (which you found in the "Prepare for the Test" procedure).

 S 715-128

 (18)
 Make sure fuel flow increases and the engine operates with the correct limits (AMM 71-00-00/201).

 NOTE: The fuel flow must increase smoothly and continuously if
____
 the bypass valve operates correctly.

 S 705-244
 (19)
 Monitor fuel tank No. 2 for a fuel decrease of a minimum of 200 - 300 LBS (90.9 - 136 KGS) in three to five minutes.

 S 715-129

 (20)
 Put the thrust lever back to the idle position and make sure the engine operates with the correct limits (AMM 71-00-00/201).

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737-300/400/500MAINTENANCE MANUAL
 S 865-130
 (21) Set these switches to the ON position:
 (a)  
the switch for the FWD boost pump for the No. 2 tank

 (b)  
the switch for the AFT boost pump for the No. 2 tank.

 S 865-131
 (22) Stop the two engines (AMM 71-00-00/201).
 TASK 28-22-00-795-174
 8. Fuel Feed System Leak Test
__________________________
 A. References
 (1) AMM 27-81-00/201, Leading Edge Flap and Slat Control System
 B. Access
 (1)  Location Zones
 101 Control Cabin Left
 102 Control Cabin Right
 303 Left Wing Inboard Leading Edge
 403 Right Wing Inboard Leading Edge

 C. Prepare for the Test
 S 865-133
 (1)  Connect the external electrical power to the airplane (AMM 24-22-00/201).
 (a)  Make sure each of the fuel tanks contains a minimum of 700 pounds (350 kilograms) of fuel.
 S 865-237
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAPS. THE FLAPS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  Extend the leading edge flaps (AMM 27-81-00/201).
 S 495-135
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO
_______ INSTALL THE LE FLAP SAFETY LOCKS. THE LE FLAPS CAN MOVE QUICKLY IF YOU DO NOT INSTALL THE SAFETY LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)
Install the locks on the leading edge flaps (AMM 27-81-00/201).

 S 865-138

 (4)  
Make sure all the switches on the P5 panel for the fuel boost pumps are in the OFF position.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 865-139
 (5)  
Make sure the APU master switch on the P5 panel is in the OFF position.

 S 865-140

 (6)  
Make sure the manual defueling valve is closed.

 S 865-141

 (7)  
Open these circuit breakers for the engine ignition and attach the DO-NOT-CLOSE tags:
　
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