787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Descent and Approach
Copyright © The Boeing Company. See title page for details.
11.43.22 D615Z003-TBC
The DELETE function key can be used to remove manually entered alternate
airports from the ALTN page.
Push – transmits a datalink request for a preferred list of alternates (up to four).
Uplinked airports display in ETA order but are assigned a preference number by
the transmitting site. The CDU help window message ALTN UPLINK is
displayed when the alternate airport data arrives.
Push – transmits a datalink request for alternate airport weather data.
ETA is calculated based on the routing, altitude, and speed displayed on the
XXXX ALTN page.
Displays the alternate airport ETA.
Blank when airplane is on the ground.
Predicted arrival fuel is calculated based on the routing, altitude, and speed
displayed on the XXXX ALTN page. The message UNABLE FUEL displays in
the FUEL column if the predicted arrival fuel is less than zero.
Displays the alternate airport predicted arrival fuel.
Blank when airplane is on the ground.
The selected alternate is identified with an
<A> or
<SEL> to the right of the airport identifier.
The FMC selects the alternate airport with the earliest ETA. FMC selected
alternates display <A> to the right of the airport identifier.
A manual selection of an alternate airport is made by pushing the line select key
left of the airport identifier. Manually selected alternates display <SEL> to the
right of the airport identifier.
The selected alternate identifier displays in the line title of the DIVERT NOW
prompt.
Entering a new airport into the list of four does not select the new airport.
Use the DELETE function key on a manually selected alternate to remove <SEL>.
The automatic selection function selects a new alternate.
Push - displays the XXXX ALTN page for the alternate airport adjacent to the >
prompt.
2
Alternate Request (ALTN REQUEST)
3
Weather Request (WXR REQUEST)
4
ETA
5
FUEL
6
Selected (<SEL>)
7
Alternate Select
August 14, 2009
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