737 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Takeoff and Climb
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11.41.28 D6-27370-866-EGP
3 RNP / ACTUAL
Displays the current FMC RNP / ANP values. The RNP may be overwritten
(manual entries are displayed in large font) and affects the approach RNP 6L
value. The RNP value displayed is selected from the performance defaults
database if not specified in the navigation database.
Same as displayed on the POS SHIFT page.
4 Crosstrack Error (XTK ERROR)
Displays present cross–track error from the desired LNAV course.
L or R indicates left or right of course.
Blank if error is greater than 99.9 nm.
5 Lateral RNP (Approach)
Displays the lowest RNP (initial, intermediate or final segment) for the selected
approach
Displays in large font for 3L manually entered RNP values.
Displays in small font for values provided by the navigation database.
6 Distance To Go
Displays the distance remaining to the next waypoint.
7 Glide Path
Displays the FMC computed glide path for the approach.
8 Waypoint Speed/Altitude
Displays waypoint speed or altitude constraints in large font.
Displays FMC predicted values in small font when no restrictions have been
specified.
YK981 - YQ456
9 Vertical Deviation
Displays present vertical deviation from the FMC computed glide path.
YW273, YW274
9 Vertical Navigation Performance
Displays both the vertical RNP (Required Navigation Performance) and the
vertical ANP (Actual Navigation Performance) for the current leg.
Valid display range for vertical ANP is 0 to 999 feet.
Manual entries are allowed and are displayed in large font.
Valid entries are 10 to 999 feet and may be suffixed with an optional “/“
September 15, 2016
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