.
an intermediate T/D (TO T/D – XXXXX, where XXXXX is the altitude).

The display is blank if a path descent is not available, or if the AT XXXXX line is blank and no T/D information is displayed.

Waypoint/Altitude (WPT/ALT)
Displays the waypoint and altitude that serves as the basis for the vertical bearing (V/B) display on line 4R.
Normally displays the same waypoint/altitude restriction that is displayed on the AT XXXXX line.
May be overwritten by pilot entry.
YD651 - YK104 (SB changes YA613 - YA687, YC153 - YC413) A runway identifier may be entered for a runway at the destination airport of the
displayed flight plan. Format may be either RWXX/, RWXXX/, RWXX/AA, or RWXXX/AA where XX or XXX is the runway designation and AA is the altitude. When RWXX/ or RWXXX/ is used the altitude will automatically be set to runway elevation plus threshold crossing height.
Dash prompts are displayed if there is no entry.

Vertical Path Parameters (FPA V/B V/S)
Displays the following parameters related to the present vertical path:.
.  
FPA – actual flight path angle based on present ground speed and vertical
speed (that is, the present vertical bearing being flown)

.  
V/B – vertical bearing direct from present position on the WPT/ALT line
(that is, the flight path angle required if flying direct to the waypoint and
altitude on the WPT/ALT line).

.  
V/S – the required vertical speed (in fpm, based on present ground speed)
to fly the displayed V/B.

Blank if no entry on the WPT/ALT line.
Copyright . The Boeing Company. See title page for details.
11.43.8   June 1, 2005

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

SPEED
Displayed on PATH DES pages.
Push – selects the related SPD DES page.

RTA
Displayed when DES NOW or ERASE prompt is not displayed. Push – selects the RTA PROGRESS page.
RTA Descent Page
RTA Descent pages are displayed when an RTA mode is active. Displays are the same as on other descent pages except as noted.

Target Speed (TGT SPD)
Displays computed RTA target speed.
Changes to FMC target speed if the RTA mode is exited.

TIME ERROR
Displays computed time error at the RTA waypoint. Same as time error line on RTA PROGRESS page.

RTA
Push – selects the RTA PROGRESS page.
Copyright . The Boeing Company. See title page for details.

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

Descent Forecast Page
The descent forecast page is used for pre–descent planning to enter forecast data

for more precise descent path calculation.
The primary entries are wind direction and speed for up to three descent altitudes,
and the altitude that anti–icing is turned on and off.

YA686 - YA722, YC153, YC154, YK101 - YK104

-<  -F  -O  -R  -E  -C  -A  -S  -T  - - - - - - - - - - - - - - -

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

Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual
YA613, YA626, YA801 - YA809, YC411 - YD655

Transition Level (TRANS LVL)
Normally displays FL180 as the assumed descent transition level.
Changes automatically if an arrival procedure having a different stored value is
entered.

Manual entry allowed and takes priority.

YA613, YA626, YA801 - YA809, YC411 - YD655
Data may be up-linked via ACARS message. The up-linked value will appear in
small font until EXECuted at which time it will be displayed in large font.

CABIN RATE
Displays the predicted cabin rate of descent required by the flight plan descent profile.

Descent Wind (ALT – – – – – WIND – – – – DIR/SPD)
Allows entry of altitude and wind direction/speed for up to three forecast wind values.
Entries may be made in any altitude sequence and will be automatically ordered by altitude from highest to lowest.
Copyright . The Boeing Company. See title page for details.
Flight Management, Navigation -FMC Descent and Approach 737 Flight Crew Operations Manual

YA613, YA626, YA801 - YA809, YC411 - YD655 Data may be up-linked via ACARS message. The up-linked value will appear in small font until EXECuted at which time it will be displayed in large font.

Thermal Anti–Ice On/Off (TAI ON/OFF)
Enter the altitudes in flight level or feet at which anti–ice is expected to be turned on and off. This entry is informational only and has no effect on aircraft operation.
　
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