Any entries propagated from the CRZ WIND entry are displayed in small font.
Keyboard entries are displayed in large font.

Crew entries of forecast winds (or default 000°/000) are automatically biased with
the actual wind computed by the FMC when within 100 NM of a cruise waypoint
and within 2000 feet of a cruise altitude. Biased values are not displayed.

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

Blank for non–cruise waypoints (VERNO and JKL are depicted). Entry is inhibited.

Estimated Time of Arrival (ETA)
Displays the FMC calculated waypoint ETA.

LEGS
Push – displays the RTE LEGS page.

WINDS REQUEST YA613, YA626, YA801 - YA809, YC411 - YD655
Push – transmits a data link request for winds uplink.
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11.42.34  June 1, 2005

Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual
Position Shift Page 3/3
On the POS SHIFT page, each prompt indicates the bearing and distance of the indicated system relative to the FMC position. FMC position is displayed on line 1R of POS REF page 2/3. The entries with parentheses in the center of the page show the active position references.
Data fields are blank when on the ground.
YA613, YA626, YA721 - YA809

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

YA686, YA687, YC153 - YK104

IRS Position L/R
Displays left and right IRS position relative to FMC position using current
mag/true reference. Blank if IRS position is invalid.
Push – highlights the line, illuminates the EXEC key, and displays the CANCEL
prompt.

Required Navigation Position/Actual (RNP/ACTUAL)
Displays the required navigation accuracy compared to actual navigation
accuracy.
Manual entry is allowed.

INDEX
Push – displays the INIT/REF INDEX page.
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11.42.36  March 28, 2005

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

RADIO Position
Displays radio position relative to FMC position using current mag/true reference.

Blank if radio position is invalid.
Push – highlights the line, illuminates the EXEC key, and displays the CANCEL
prompt.

Navigation Status (NAV STATUS)
Push – displays the NAV STATUS page.

GPS Position L/R
Displays left and right GPS position relative to FMC position using current

mag/true reference. Blank if GPS position is invalid.
Push – highlights the line, illuminates the EXEC key, and displays the CANCEL
prompt.

FMC Position L/R YA686, YA687, YC153 - YK104
Displays left and right FMC position relative to FMC position using current

mag/true reference. Blank if FMC position is invalid.
Push – highlights the line, illuminates the EXEC key, and displays the CANCEL
prompt.

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

Inflight Position Update
FMC position update is accomplished on the POS SHIFT 3/3 page in flight. Selecting a prompt stops the updating of the relative position. The selection is highlighted, the associated caret is removed, the execute key is illuminated, and the CANCEL prompt is displayed in line 6R.
When the position shift is executed, UPDATE COMPLETE is displayed.
YA613, YA626, YA721 - YA809

Copyright . The Boeing Company. See title page for details.
11.42.38  March 28, 2005

Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual
YA686, YA687, YC153 - YK104

CANCEL
Displayed when a line selection is made for position update.
Push – prior to execution cancels the line selection.

UPDATE COMPLETE
Displayed after a position shift has been selected and executed.
Copyright . The Boeing Company. See title page for details.
Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual

Navigation Data Reference Navigation Data (REF NAV DATA) Page
The reference navigation data page provides information about waypoints, navaids, airports, and runways. Entering the appropriate identifier initiates the display. Writing SUPP in the scratch pad prior to selecting NAV DATA results in display of the supplemental navigation data (SUPP NAV DATA) page.

Waypoint Identifier (WPT IDENT)
　
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