(b)
Stop the refuel operation when fueling operations are suspended.
(c)
Disconnect and remove any external headsets.
(d)
Do not touch any electrical connections.
(2) Refuel operations must stop if strong wind conditions are present. Strong wind conditions can cause a build-up of static electricity. Large charges of static electricity can develop on support equipment while parked as a result of the movement of dust particles and air currents during strong wind conditions. Strong wind conditions can also cause the unwanted movement of items or equipment which can cause injury to persons or strike the airplane.
500
May 01/03 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 12-11-01 Page 307
3. Prepare the Airplane for a Refuel Operation (Fig. 301)
A. General
(1)
This task prepares the airplane for a pressure refuel operation.
(2)
Refer to AMM 12-11-03/301 for overwing refuel procedures.
B. Prepare the Airplane for a Refuel Operation
(1)
Read and obey the precautions in this task: Precautions and Limits for Fuel Servicing.
WARNING: OBEY ALL THE REFUEL OPERATIONS PRECAUTIONS. IF YOU DO NOT OBEY THE REFUEL PRECAUTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(2)
Make sure the airplane is in a 1 ± 0.25° nose down and a 0 ± 0.25° roll attitude.
(3)
Sump the water from the fuel tanks before you refuel the airplane (AMM 12-11-05/301).
(4)
Make sure the wingtip pressure relief valves (if installed) are in the closed position:
(5)
Do this task for extended leading edge flaps and slats: Leading Edge Flaps and Slat Locks Application (AMM 27-81-0/201).
WARNING: INSTALL THE LOCKS ON ALL EXTENDED LEADING EDGE FLAPS AND SLATS. THIS WILL PREVENT INJURY FROM AN ACCIDENTAL OPERATION OF THE FLAPS OR SLATS.
(6)
Supply electrical power (AMM 24-22-0/201).
(a) If you do not have 115-volt ac power (external power), you can do the pressure refuel operation with electrical power from the airplane battery.
NOTE: This procedure operates static inverter which supplies the necessary AC voltage to operate the full refuel system with its usual functions. This includes fuel gages and the fuel shutoff system. The only limit during this type of operation is the battery life. Complete the refuel operation as soon as possible. A fully charged battery can operate the refuel system for 15-20 minutes.
1) Make sure these circuit breakers on the circuit breaker panel, P6, are closed: a) INVERTER PWR b) INVERTER CONT
2) Set the battery switch to ON.
3) Set the standby power switch to BATT.
(b) If the APU is to supply power, refer to Chapter 49 and the limits and precautions for APU operations during refueling.
(7)
AIRPLANES WITH AN AUXILIARY TANK;
Do these steps:
(a)
Put the engine No. 2 start lever in the CUT-OFF position.
(b)
Put the crossfeed valve switch in the closed position.
(8)
Make sure the onboard fuel load is in a valid fuel distribution configuration (equivalent to after a flight operation).
(a) Transfer fuel if it is necessary (AMM 28-23-0/201).
C. Pressure Refuel Operation Procedures
(1) Do one of these pressure refuel operations:
(a)
Pressure Refueling (AMM 12-11-02/301)
(b)
Alternative Refueling Procedures (AMM 12-11-04/301).
500
12-11-01 Page 308 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/03
N96019 N98046
500 Fuel Tank Usable Fuel Quantities
May 01/03 Figure 301 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 12-11-01 Page 309
Fuel Tank Usable Fuel Quantities 500
12-11-01 Page 310 Figure 301 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/03
PRESSURE REFUELING - SERVICING
1. Pressure Refuel
A. General
(1) This task uses the pressure refuel system to refuel the airplane.
B. Prepare the Airplane for the Refuel Operation
(1)
Read and obey the precautions in this task: Precautions and Limits for Fuel Servicing (AMM 12-11-01/301).
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