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• REF NAV DATA page – display data about waypoints, navaids, airports,
or runways, and can be used to inhibit navaids
• RTE X page – use to select a route offset
• FIX INFO page – display data about waypoints. Page data can be
transferred to other pages to create new waypoints and fixes
• SELECT DESIRED WAYPOINT page – shows a list of duplicate
waypoints from the navigation database. The flight crew selects the
correct waypoint from the list
• POS REPORT page – display data for a position report.
The CLB page changes to CRZ at the top of climb. The CRZ CLB and CRZ DES
pages change to CRZ at the new cruise altitude. The CRZ page changes to DES at
top of descent.
LNAV Modifications
This section describes typical techniques to modify the route. The modifications
include:
• add and delete waypoints
• change waypoint’s sequence
• remove discontinuities
• intercept a course.
787 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Cruise
11.42.2 Boeing Proprietary
RTE LEGS Page Modifications
When modifications are made to a RTE LEGS page, several prompt or identifying
features help the flight crew make the modifications, such as:
• ERASE
• INTC CRS TO
• INTC CRS FROM.
Modified entries display in shaded white.
Add Waypoints
Waypoints can be added to the route at any point. Added waypoints are followed
by route discontinuities.
First, enter the waypoint name in the scratchpad.
Second, locate the desired line in the flight plan and push the adjacent line select
key. The scratchpad waypoint name is put into the selected line. The entered
waypoint is connected to the waypoint above it via a direct route. A route
discontinuity follows the waypoint.
For example, OED is typed into the scratchpad. Push line select key 2L to put
OED into line 2. The FMC assumes BTG direct OED. RBL and the rest of the
flight plan follow the route discontinuity.
787 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Cruise
Boeing Proprietary 11.42.3
MOD (shaded white) – replaces ACT when modification in progress.
ACT (white) – replaces MOD when ERASE selected or execute key pushed.
Waypoint name is shaded white until executed.
OED waypoint entered into the route after BTG. Modification creates a route
discontinuity because OED was not in active route. The FMC now requires
routing beyond OED.
Discontinuity is removed when applicable waypoint is entered in boxes.
Push – removes all modifications and shows active data.
Displays when the FMC contains modified data.
Removed when selected or modifications executed.
Line title separates route segments when there is a discontinuity.
Note: Performance predictions to destination on the PROGRESS page are
calculated assuming the route of flight is direct between waypoints on
either side of a route discontinuity.
1 Page Title
2Modified Waypoint
3 Discontinuity Waypoint
4 ERASE
5 ROUTE DISCONTINUITY
- - - - - - - - - -
- - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 6 5 o 38NM
19 7NM
14 2NM
R O U T E D I S C O N T I N U I T Y
T H E N
1 6 3 o
1 2 1 o
B
0 9
0 9
. 8 / F L 3 5 0
. 8 / F L 3 5 0
. 8 1 0 / F L 3 5 0
. 8 1 0 / F L 3 5 0
ERASE
OAK
RBL
TG
1 4
< RTE DATA>
MOD RTE1LEGS /
w8mt-34-00-0082
1
2
3
4
5
OED
787 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Cruise
11.42.4 Boeing Proprietary
Delete Waypoints
Use the RTE LEGS page to remove waypoints from the route. The active
waypoint can not be deleted. Two methods to remove a waypoint are:
• delete the waypoint with the DELETE function key
• change the waypoint’s sequence.
The data in the route before and after the deleted waypoint does not change. A
discontinuity is put in the route when the DELETE function key is used to remove
a waypoint.
The active route shows RBL followed by OAK and AVE.
Pushing the DEL function key arms the delete function and selects DELETE to
the scratchpad.
1 Active Route
2 DELETE Entry
w8mt-34-00-0084
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
ACT
B
9
3 8
2 9
1 6 5
1 4 2
3 3 7
4
N M
80 8/FL350
N M
80 8/FL350
　
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