787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
Company Datalink
Copyright © The Boeing Company. See title page for details.
11.34.4 D615Z003-TBC
Automatic Downlinks
The FMC can be configured by the airline to automatically transmit downlinks of
FMC data at predetermined points during the flight or in response to specific data
requests from the airline dispatcher. The FMC response in these cases is
completely automatic and no flight crew action is necessary.
Uplinks
Uplinked data may be loaded automatically or may require flight crew action. Two
uplinks automatically load data into the FMC and do not require execution.
Uplinked data that waits in system memory for flight crew action are considered
to be pending.
A pending uplink is included or discarded when the flight crew selects the
applicable prompt. Flight crew response to an uplink depends on the type of
uplink. Flight crew action is made with ACCEPT/REJECT or LOAD/PURGE
prompts, FMC modification ERASE prompt or EXEC key, or when the page with
the uplink is selected. Glareshield–mounted accept and reject switches operate the
same as MFD ACCEPT/REJECT prompts.
Data can be uplinked from the airline dispatcher directly to the PERF INIT,
TAKEOFF REF 1/2 and 2/2, DESCENT FORECAST, RTE, ALTN, ALTN LIST,
and WIND pages. The uplinks are annunciated to the crew by the •FMC EICAS
communications alert and a hi–lo chime. The uplink is identified by a CDU help
window message and by the presence of an UPLINK label over the applicable
COMM page prompt.
If there is no active route, wind uplinks are not annunciated, and the <WIND
prompt on the COMM page is not shown.
Requests
A REQUEST prompt on each page downlinks a unique request applicable to that
page. The pages below (as configured by the airline) may contain request prompts.
Selection of Report
by Ground Station
Report
Transmitted
Report Being
TNES
ER<PTRO
Acknowledged
TROPER< GNITROPER
October 31, 2007
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