beginning point of the current route segment, or a route discontinuity is created between the segments. Entry of a SID or transition automatically enters the VIA and TO data for the route
segments of the SID. A SID automatically links to the next route segment when the final SID waypoint is part of the route segment.
LACRE3.VAMPS is an example of a SID selection made on the DEPARTURES
page.
V2 is an example of airway entry.

TO
Enter the end point of the route segment specified by the VIA entry.

Entry of a waypoint in the TO column without first entering a VIA airway displays
DIRECT in the VIA column.
Box prompts indicate that an entry is required.
Valid waypoint entries for a DIRECT route segment are any valid waypoint, fix,

navaid, airport, or runway.
Valid waypoint entries for airways are waypoints or fixes on the airway.
Dash prompts appear on the first TO waypoint following the end of the route.

ACTIVATE
Pushing the ACTIVATE key arms the route for execution as the active route. When the EXEC key is pushed, the route becomes the active route and the ACTIVATE prompt is replaced with the next required preflight page prompt.
Push – prepares the selected route for execution as the active route. Activation of a route is required for completion of the preflight. Displayed on inactive route pages.
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Flight Management, Navigation -FMC Preflight 737 Flight Crew Operations Manual

After route activation, the ACTIVATE prompt is replaced by:
.
PERF INIT, when the required performance data is incomplete, or

.
TAKEOFF when the required performance data is complete.

Additional Route Page Prompts for an Activated Route
YA721, YA722, YC153, YC154, YK101 - YK104

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Flight Management, Navigation -FMC Preflight 737 Flight Crew Operations Manual
YA613 - YA687, YA801 - YA809, YC411 - YD655

ERASE
Push – removes all pending modifications.
Displayed only during modifications.

Performance Initialization (PERF INIT)
Push – displays PERF INIT page.
Displayed only on the ground when required entries on the PERF INIT page are incomplete.

TAKEOFF
Push – displays TAKEOFF REF page 1/2.

Displayed only on the ground when all required entries on the PERF INIT page
are complete.

OFFSET
Push – displays LATERAL OFFSET page.
Displayed only in flight.

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

Alternate Destination (ALTN DEST)
YA613 - YA687, YA801 - YA809, YC411 - YD655
Push – displays ALTERNATE DESTS page 1/6.
Departure/Arrival Index Page
The departure and arrival index page is used to select the departure or arrival page for the origin and destination airports for each route. The index also allows reference to departure or arrival information for any other airport in the navigation database.
Departure and arrival prompts are available for the origin airport. Destination airports have only arrival prompts.

Departure (DEP) – Origin
Push – displays the departure page for origin airport.
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Flight Management, Navigation -FMC Preflight 737 Flight Crew Operations Manual

Departure (DEP) – OTHER
Displays the departure page for the airport entered into this line through the
scratchpad.
DEP prompt for OTHER allows display of departure information about airports
that are not an origin or destination. The displayed information can be viewed but
cannot be selected, because the airport is not on the route.

Arrival (ARR) – Origin
Push – displays the arrival page for origin airport. Origin airport arrivals selection is used during a turn–back situation.

Arrival (ARR) – Destination
Push – displays the arrival page for destination airport.

Arrival (ARR) – OTHER
Displays the arrival page for the airport entered into this line through the

scratchpad.
ARR prompt for OTHER allows display of arrival information about airports that
are not an origin or destination. The displayed information can be viewed but
cannot be selected, because the airport is not on the route.

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

Departures Page
　
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