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• clears CDU help window message
• replaces existing data with modified uplinked data
• changes page title to MOD
• shows ERASE prompt
• illuminates EXEC light.
RTE
<LOAD PURGE>
RO U T E UPLINK
1
RTE 2
DESCENT FORECAST
F O R E C A S T UPLINK
<LOAD PURGE>
UPLINK TO DESENT FORECAST
UPLINK TO INACTIVE ROUTE
787 Flight Crew Operations Manual
Flight Management, Navigation -
Company Datalink
Boeing Proprietary 11.34.7
Push the EXEC key to:
• put modified data in active flight plan
• change page format to pre–uplink format
• transmit a downlink accept message (if enabled).
Select ERASE prompt to:
• remove modified data
• return page display to pre–uplink format
• transmit a downlink reject message (if enabled).
FMC Datalink Uplinks (Automatic)
FLT NO and ALTN LIST data can be automatically uplinked and loaded. FLT NO
automatically loads into the RTE 1/x page without flight crew action. The list of
20 alternates automatically loads into the ALTN LIST page without flight crew
action.
The CDU help window messages FLIGHT NUMBER UPLINK or ALTN LIST
UPLINK stay in the CDU help window until the applicable CDU page is selected.
U
<ERASE >
<LOAD
PERF INIT
P L I N K
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - --------
EXEC
<ERASE RTE DATA>
<LEGS LOAD>
WIND DATA
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - --------
-- - - - - - - - - - - - - - - - - - - - - - - - - ---
EXEC
ROUTE MODIFICATION UPLINK EXAMPLE
WIND UPLINK EXAMPLE
787 Flight Crew Operations Manual
Flight Management, Navigation -
Company Datalink
11.34.8 Boeing Proprietary
Datalink Management
The flight crew should monitor system status of FMC datalink. This is
accomplished on various CDU pages or on the FMC COMM page. Changes to
datalink system operating modes are accomplished with the COMM function on
the display select panel or multi-function keyboard.
CDU Datalink Status Displays
Datalink operation is verified when the correct line title is above the related
prompt. In the example below, the line title ROUTE is above the REQUEST and
REPORT prompts on the RTE page.
ALTERNATE AIRPORT LIST
1 TOTAL
ALTERNATE LIST UPLINK
MESSAGES
CLEAR
MSG
FLIGHT NUMBER LOADED
1 TOTAL
FLIGHT NUMBER UPLINK
MESSAGES
CLEAR
MSG
ON RTE PAGE 1
READY TO
CONFIRM
ON ALTN PAGE 2/X
<REPORT
ACT RTE 1
<REQUEST
R O U T E
R O U T E
787 Flight Crew Operations Manual
Flight Management, Navigation -
Company Datalink
Boeing Proprietary 11.34.9
When the datalink system is not operating, CDU page prompts change to NO
COMM and the line titles change to DATA LINK.
FMC Communications Page
General datalink status displays on the FMC COMM page. Page select prompts
display for each FMC page with access to datalink data.
1 Uplink Status
ACT RTE 1
NO COMM
NO COMM
D A T A L I N K
D A T A L I N K
COMM
FMC
>
Y
K
<DES FORECAST READ
<
<
<
<
POS REPORT
U P L I
RTE 1
U P L I N K ( 2 )
WIND
PERF
ALTN
D A T A L I N
N K
FMC COMM
2
1
787 Flight Crew Operations Manual
Flight Management, Navigation -
Company Datalink
11.34.10 Boeing Proprietary
The page line heading displays UPLINK when an uplink message is pending and
all preprocessing is complete. Preprocessing of uplinks ensures necessary data is
available for display when the uplink message is selected. Examples of
preprocessing include:
• RTE ALTN, ALTN LIST, PERF, and WIND uplinks are held until route
activation or modifications are complete
• Subsequent uplinks of the same type are held until previous uplinks are
included or discarded by the flight crew.
When both ALTN and ALTN LIST uplinks are pending, (2) displays to the right
of UPLINK in the line heading.
The EICAS message •FMC displays whenever any UPLINK message is pending.
Displays the datalink system status.
System status can be:
• READY
• NO COMM
• VOICE
• FAIL.
Page Select Prompts
Selection of any of these prompts displays the related page:
2 DATA LINK
• RTE X
• ALTN
• PERF
• WIND
• DES FORECAST
　
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