computed gross weight.

Go–Around N1 (GA N1)
Displays the computed N1 go–around limit, based on present pressure altitude, temperature, and bleed configuration.

Runway Length
Displays the length in feet and meters of the referenced runway. Blank if no runway has been entered and executed.
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Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

Approach Information
Displays the runway number and associated ILS frequency/identifier for the ILS,
LOC, or back course approach in the active flight plan.
Blank if no approach has been executed.

INDEX
Push – selects the INIT/REF INDEX page.

Vref (FLAPS – – – VREF)
Displays landing Vref for three flap settings as computed by the FMC. Displayed

in small size characters.
Double line selection of a displayed Vref, or manual entry of another value, causes
Vref to be displayed on the airspeed display. CDU display changes to large size
characters.

Speeds are based on displayed gross weights.

Double line selection provides Vref to be used by VNAV in combination with
wind correction.
Vref, once selected, will not be updated. To obtain an updated speed, the current

speed must be deleted or a different Vref selected or entered.

Wind Correction (WIND CORR)
Displays current wind correction for approach. Default is +05 knots. Manual input of desired wind correction may be made up to +20 knots.

Front Course (FRONT CRS)
Displays front course for the approach displayed on ILS approach line. Blank if no ILS approach selected.

Alternate Destination (ALTN DEST) YA613 - YA687, YA801 - YA803, YC411, YC413
Push – selects alternate Destination page.

Landing Reference (LANDING REF) YA721, YA722
Push – Toggles altimeter reference between QFE and QNH.
Default is QNH.
Resets to QNH at flight complete.

Copyright . The Boeing Company. See title page for details.
11.43.26  June 1, 2005

Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual
Reflects TAKEOFF REF selection on TAKEOFF REF page 2.

Active altimeter reference is highlighted.
During descent with QFE selected, the PFD altitude indications show zero feet at
the arrival runway. The PFD altitude indication background colors change to
green.

If QFE is the current altimeter reference, and the EFIS control panel STD switch
is pushed, The takeoff reference automatically toggles to QNH.

Landing Reference (LANDING REF) YA801 - YA803, YC411, YC413
Push – Toggles altimeter reference between QFE and QNH.
Default is QNH.
Resets to QNH at flight complete.
Reflects TAKEOFF REF selection on TAKEOFF REF page 2.
Active altimeter reference is highlighted.
During descent with QFE selected, the PFD altitude indications show zero feet at

the arrival runway. The PFD altitude indication background colors change to

green.
If QFE is the current altimeter reference, and the EFIS control panel STD switch
is pushed, The takeoff reference automatically toggles to QNH.

Copyright . The Boeing Company. See title page for details.
Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

YA809, YD651 - YK104
(SB changes YA613 - YA687, YC153 - YC413)

YC153, YC154, YK101 - YK104

Copyright . The Boeing Company. See title page for details.
11.43.28  June 1, 2005

Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual
YA613 - YA687

Copyright . The Boeing Company. See title page for details.
June 1, 2005  11.43.29
Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

YA809, YC411 - YD655

Airplane Gross Weight (GROSS WT)
Normally displays the FMC calculated airplane gross weight.
A manual entry of gross weight is allowed.
Displays box prompts when gross weight is not available from the FMC.
Valid entry is XXX.X.
Leaving and returning to this page replaces a manually entered weight with FMC

computed gross weight.

Runway Length
Displays the length in feet and meters of the referenced runway. Blank if no runway has been entered and executed.
Copyright . The Boeing Company. See title page for details.
11.43.30  June 1, 2005

Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

Approach Information
Displays the runway number and associated ILS frequency/identifier for the ILS,
　
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