OPERATIONS MANUAL

FMS
OFFPATH DES Page:
1L
2L
3L
4L
5L
6L
1R
2R
3R
5R
6R
Access:
6L on VNAV DES
General:
Shows T/D arcs (circles) for an off-route,
crew selected target altitude and target
waypoint in the vicinity of the aircraft.
Computations take into account the data
from the DESCENT FORECAST page.
1L DES TO DTG
Shows the descent-to waypoint the circles
refer to. The default waypoint is the E/D
of the active route. Manual entries and
deletions are promptly activated; the EXEC
key is not required as this is a display
function only.—In the middle of the line,
under DTG, indicates the direct distance to
go to that waypoint.
Valid entries
Any waypoint, station, or airport identifier
in the database or active route.
2L 3L 4L 5L
Same functions as on the VNAV DES page.
Refer to VNAV DES Page in this chapter.
1R SPD/ALT
Indicates the speed/altitude constraint at the
descent-to waypoint entered in 1L. May be
manually overwritten; manual entry will not
overwrite the waypoint’s actual constraint
shown on the LEGS page. Manual entries
and deletions are promptly activated; the
EXEC key is not required as this is a display
function only. Initially shows boxes when
an off-route waypoint is entered in 1L.
When the entered altitude is higher than the
current aircraft altitude, 1L and 1R return to
the default display.
Valid entries
Altitude (-1005 to 45000 ft):
XXX
XXXX
XXXXX
FLXXX
2R CLEAN CIRCLE
Indicates the distance to go to the T/D for a
clean idle descent to the target in 1L and 1R.
3R DRAG CIRCLE
Same function as 2R, but with speedbrakes.
6L
Shows or hides the circles on the onside ND.
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