ABEAM
Displays the abeam point and calculates the ETA, DTG, and ALT information.
The fix abeam point ahead of the airplane is displayed by a radial line from the waypoint ending at the nearest perpendicular route leg intersection. If there is more than one intersection, the data will apply to the first occurrence
and will sequence as each intersection is passed.

Route Intersection Point Copied
Pushing the line select key for one of the RAD/DIS entries copies the fix place/bearing/distance definition into the scratchpad. This fix can be placed into the route on a LEGS page as a waypoint.
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11.42.54  March 28, 2005

Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual

Radial/Distance From Fix (RAD/DIS FR)
Displays the radial and distance from the fix to the airplane. This information is continually updated as the airplane position changes.
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Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual

Intentionally
Blank

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737 Flight Crew Operations Manual

Introduction
The descent phase begins at the top of descent point and continues to the end of descent point. Planning for the descent phase begins during cruise.
The approach phase begins at the end of descent point and continues to touchdown or go–around. When a go–around is accomplished, the FMC enters the cruise phase.
The only automatic page change provided in the descent/approach modes is the transition from cruise to descent at the top of descent.
Early Descent
Early descent may be commenced prior to reaching the top of descent by using the DES NOW prompt.
Descent
During descent, LNAV progress is managed using the RTE LEGS and PROGRESS pages, as in the cruise phase. VNAV descent management is accomplished primarily on the DES page.
YA721, YA722, YC153, YC154, YK101 - YK104 The DES FORECASTS page is also available to enter forecast wind data to aid in descent planning.
YA613 - YA687, YA801 - YA809, YC411 - YD655 Other pages which support descent are:
.  
DES FORECASTS page – to enter forecast wind data to aid descent
planning

.  
ALTERNATE DESTS page – to manage the selection of alternate airports
and diversions.

Descent Page (During Cruise)
The descent page is used to monitor, revise, or select the descent path. Descent modes are economy (ECON) path or speed and manual path or speed. The default VNAV descent mode is ECON PATH. The crew must select a manual speed descent mode.
The page title reflects the VNAV descent mode. The path mode controls descent to fly a vertical path which complies with altitude and speed restrictions in the flight plan. The speed mode controls descent at a fixed speed and complies with altitude and speed restrictions in the flight plan.
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Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

YA613 - YC413, YK101 - YK104

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Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual
YD651 - YD655

Page Title
The page title identifies the selected mode. When a manual speed is selected, the title includes XXXKT for fixed CAS or M.XXX for fixed Mach selections.
Displays ACT when the descent phase is active.

End of Descent Altitude (E/D ALT)
Displays the end of descent altitude.
.  
for a PATH DES page, displays the altitude restriction for the E/D
waypoint; blank if path descent not available

.  
for a SPD DES page, displays the altitude restriction for the E/D
waypoint, if an E/D waypoint is present

.  
if an approach is selected which ends at RWXXX, the E/D altitude will be
Threshold Crossing Height (TCH), 50 feet above the runway.

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

YA613 - YD651, YK101 - YK104 The end of descent altitude is the last of the following not preceded by a lateral discontinuity:
.
glideslope intercept point or FAF for approaches other than ILS or GLS

.  
the AT altitude constraint including the runway threshold altitude
YA613 - YA687, YA801 - YD651, YK101 - YK104
　
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