If the destination airport or runway is
manually entered, or if the airport/runway
is loaded from the database, the airport
elevation will be displayed in the altitude
field. If the flight plan is loaded through
AFIS, the airport elevation will not be
crossing altitude (EST CROSSING) is the altitude at
which the aircraft is estimated to be when it crosses
the TO waypoint based on its current groundspeed
and vertical speed (displayed for the active vertical
(4) PLAN CROSSING. PLAN CROSSING is
system determined crossing based on programmed
Displayed for other than active vertical waypoint.
(5) OFFSET. OFFSET displays pilot value in
nautical miles ( -99 to +99 range) where a positive
entry (+) indicates an offset beyond the waypoint and
a negative (-) entry is prior to the waypoint.
Pilot must enter the leading (+) sign for the
offset to be beyond the fix, but a () pre-
fills as a default to cross prior to the fix.
(6) REQ FPM. Required feet per minute
(REQ FPM) displays the required vertical speed in feet
per minute that the aircraft must maintain to reach the
vertical waypoint. UP indicates a positive vertical
speed and DN indicates a negative vertical speed is
If PLAN CROSSING is displayed, the REQ
FPM is the planned vertical speed for the
(7) FPA. FPA displays the flight path angle
hundredths of a degree with a valid range of 0.1 to 6.
The following may appear in parentheses.
(a) DB. Displays FPA from Database
(b) MAN. Displays manually entered
(c) DIR. Indicates that a direct (DIR)
flight path angle has been programmed.
(d) AUTO. Automatic (AUTO) indicates
a system computed FPA.
(e) DEF. Indicates that flight path angle
is a default (DEF) from the VNAV Data page.
DIR, AUTO, and DEF can be accessed
using the BACK key.
(8) DIRECT FPA. Displays the direct flight
path angle (DIRECT FPA) from the current aircraft
altitude to the vertical waypoint in degrees and tenths
of a degree (valid range 0.0 to 90.0). DN indicates a
negative FPA and UP indicates a positive FPA.
j. Planning Pages (PLAN Key).
(1) Plan 1/5 Page, Fuel Status. Refer to
Figure 3A-38. Plan 1/5 Page, Fuel Status
(a) FUEL STATUS LB. This display
indicates that fuel data is being computed in pounds.
This unit can be manually changed to kilograms (KG),
if desired, by using the BACK key.
(b) REMAINING. This display shows the
total fuel remaining on board in pounds or kilograms.
This quantity must be initially entered or verified by the
pilot and may require periodic verification or update.
(c) RESERVE. This display shows the
desired reserve in pounds or kilograms. This quantity
may require periodic verification or update.
(d) FLOW. This display shows the
current fuel flow in pounds or kilograms. Fuel flow