787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Instruments, Displays -
Primary Flight Displays (PFDs)
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 10.30.5
If ANP value increases (Navigation system performance
decreases), the ANP bars become longer, extending
NOTE:
toward the center of the scale.
Circle around airplane (2 x ANP) represents where the
airplane is estimated to be located 95% of the time.
FMC Route
RNP
ANP Circle
Maneuver
Space
Maneuver Space
(A+B)
ANP
ANP
RNP
(A) (B)
Maneuver
Space
Left of Route On Route Right of Route
Large FMC
Position Uncertainty
NAV UNABLE RNP
EICAS Message
Left of Route
Outside RNP boundary
LATERAL NAVIGATION PERFORMANCE SCALES
February 15, 2010