787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Preflight
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 11.40.15
Push – alternately selects GPS NAV ON (enabled) and OFF (disabled).
OFF – GPS position data is not available to the FMC. OFF displays in large green
letters; ON displays in small white letters.
ON – GPS position data is available to the FMC. ON displays in large green
letters; OFF displays in small white letters.
Note: When power is initially applied to the airplane or when engines are shut
down, GPS NAV is set to ON.
Note: Inhibiting GPS updating may be required in certain operational
environments such as making an approach at a non WGS-84 surveyed
airport.
Push – alternately selects DME/DME NAV ON (enabled) and OFF (disabled).
OFF – DME/DME position data is not available to the FMC. OFF displays in large
green letters; ON displays in small white letters.
ON – DME/DME position data is available to the FMC. ON displays in large
green letters; OFF displays in small white letters.
Push – alternately selects VOR/DME NAV ON (enabled) and OFF (disabled).
OFF – VOR/DME position data is not available to the FMC. OFF displays in large
green letters; ON displays in small white letters.
ON – VOR/DME position data is available to the FMC. ON displays in large green
letters; OFF displays in small white letters.
Push – alternately selects LOC NAV ON (enabled) and OFF (disabled).
OFF – LOC position data is not available to the FMC. OFF displays in large green
letters; ON displays in small white letters.
ON – LOC position data is available to the FMC. ON displays in large green
letters; OFF displays in small white letters.
Push – alternately changes the display of position data on POS REF 3/4 and 4/4 to
latitude/longitude format or bearing/distance format.
The page illustration is shown in the bearing/distance display mode.
5
GPS NAV
6
DME/DME NAV
7
VOR/DME NAV
8
LOC NAV
9
Latitude/Longitude (LAT/LON) or Bearing/Distance (BRG/DIST)
February 15, 2010
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