EFIS Control Panel Range Selector ...................................... As required
MAP CTR STEP key ....................................................................... Push Each push moves the CTR label to the next geographically fixed waypoint in the route. Selecting PREV PAGE or NEXT PAGE moves the CTR label to the first geographically fixed waypoint on the new page.
EFIS Control Panel Mode Selector ....................................... As required
Enter Position Shift on Runway
TAKEOFF REF page ..................................................................... Select YA613, YA626, YA721 - YK104 TO SHIFT distance ..........................................................................Enter Enter distance desired from runway threshold. When TO/GA is pushed, FMC will update position to runway threshold plus entered distance. YA686, YA687 RWY REMAIN distance ..................................................................Enter Enter runway remaining distance. When TO/GA is pushed, FMC will update to the runway remaining distance.
If position shift must be removed
RTE page................................................................................... Select
RWY ...........................................................................................Enter Reenter runway on RTE page. Check and reenter other performance data as required.
Copyright . The Boeing Company. See title page for details.
737 Flight Crew Operations Manual
Fuel Balancing
If a fuel leak is suspected:
Accomplish the ENGINE FUEL LEAK checklist.
Maintain main tank No. 1 and No. 2 fuel balance within limitations.
Note: Fuel pump pressure should be supplied to the engines at all
times. At high altitude, without fuel pump pressure, thrust
deterioration or engine flameout may occur.
If the center tank contains fuel:
Center tank fuel pump switches .................................................. OFF [Fuel CONFIG indication may be displayed with fuel in the center tank.]
Crossfeed selector.......................................................................Open Fuel pump switches (low tank) ................................................... OFF When quantities are balanced:
Fuel pump switches (main tank) ..............................................ON
Center tank fuel pump switches ...............................................ON
Crossfeed selector ................................................................ Close
If the center tank contains no fuel: Crossfeed selector.......................................................................Open Fuel pump switches (low tank) ................................................... OFF When quantities are balanced:
Fuel pump switches..................................................................ON
Crossfeed selector ................................................................ Close
Copyright . The Boeing Company. See title page for details.
Supplementary Procedures -Fuel 737 Flight Crew Operations Manual
Refueling
Fuel Load Distribution
Main tanks No. 1 and No. 2 should normally be serviced equally until full. Additional fuel is loaded into the center tank until the desired fuel load is reached.
Note: Main tanks No. 1 and No. 2 must be scheduled to be full if the center tank contains more than 453 kgs of fuel. With less than 453 kgs of center tank fuel, partial main tank fuel may be loaded provided the effects of balance have been considered.
Fuel Pressure
Apply from a truck or fuel pit. A nozzle pressure of 50 psi provides approximately 1136 liters per minute.
Normal Refueling
YA613 - YA687, YA801 - YA809, YC411 - YD655 When a full fuel load is required, the fuel shutoff system closes the fueling valves automatically when the tanks are full. When a partial fuel load is required, the fuel shutoff system closes the fueling valves automatically when the quantity preselected on the fuel quantity selector (located on the test gauges and fueling panel) is reached.
YA721, YA722, YC153, YC154, YK101 - YK104 When a full fuel load is required, the fuel shutoff system closes the fueling valves automatically when the tanks are full. When a partial fuel load is required, the fuel quantity indicators are monitored and the fueling valves are closed by manually positioning the fueling valve switches to CLOSED when the desired fuel quantity is aboard the airplane.
Refueling with Battery Only
When the APU is inoperative and external power is not available, refueling can be accomplished as follows:
Battery switch .................................................................................... ON
Note: The refueling system will operate normally. Operation is limited only by battery life.
Copyright . The Boeing Company. See title page for details.
Supplementary Procedures -Fuel 737 Flight Crew Operations Manual 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737NG机组操作手册Flight Crew Operations Manual FCOM 1(92)
