Boeing 787-8 - In-Flight Position Update

787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Cruise
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 11.42.45
In–Flight Position Update
FMC position update can be accomplished on the POS REF 2/4 page in flight.
Pushing the ARM prompt arms the position update function. ARM changes to
ARMED. Each of the position update sources have a NOW prompt.
Push – updates the FMC position to the indicated IRU sensor position.
Header displays position uncertainty (ANP) in nautical miles.
Push – updates the FMC position to the indicated GPS sensor position.
Header displays position uncertainty (ANP) in nautical miles.
1
UPDATE ARMED
2
IRU NOW
3
GPS NOW
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June 16, 2008