3. BACK key Press. Cursor field
will display MAN? to inform the
pilot of the pending change.
4. ENTER key Press. The cursor
remain in the field confirming that
manually. NO AUTO LEG CHG
System Messages page, however
the MSG light will not illuminate.
1. NAV key Press to display NAV 1
2. Line select key Press to position
cursor over MAN.
3. BACK key Press. The cursor
disappears and AUTO remains in
the field confirming return to the
automatic leg change mode. NO
AUTO LEG CHG message on the
disappears unless the current TO
waypoint is the last waypoint on
the active flight plan.
(7) External Waypoint Acceptance. Up to 99
interfaced radar or EFIS. When a waypoint is
generated from this equipment, a DIRECT TO leg
change is made to that waypoint. The generated
waypoint will be designated EX#01 to EX#99.
As the external waypoint (EX#) is off the flight
plan, it will be separated from the active flight plan
waypoint sequence and a NO AUTO LEG CHG
message will appear on the System Messages page.
The following procedure may be used to link the EX#
waypoint into the flight plan sequence.
1. D key Press. The display will
show direct to the EX# waypoint with
the complete active flight plan listed
2. Line select key Press to position the
cursor over the waypoint to follow the
3. EX# waypoint identifier Insert.
4. ENTER key Press.
The EX# waypoint identifier will flash if an
unassigned number is entered. EX#
waypoint coordinates can only be assigned
by an external source (radar or EFIS).
5. Waypoint page coordinates Verify.
6. ENTER key Press.
7. Waypoint sequence Verify.
8. ENTER key Press. CDU display will
automatically advance to Navigation
page and NO AUTO LEG CHG
message will be removed from the
System Messages page.
(8) Present Position As A Waypoint. A
special waypoint location is reserved for storing
present position coordinates as a waypoint. The
identifier for this waypoint is inserted as #1. The
identifier may be used as a parent identifier for an
offset waypoint by adding an *.
Since waypoint #1 is frequently redefined,
it is not retained in nonvolatile memory and
the identifier #1 cannot be entered on a
stored flight plan. It does, however, use up
one of the 999 available waypoints, as do
#OFF and EX waypoints.
Waypoint #1 is redefined each time the HOLD
key is pressed. An example of the application of
waypoint #1 is to store the coordinates of a point
overflown to which you may wish to return. This is
accomplished by pressing the HOLD key directly over
that desired point. In this case these coordinates
would be stored under identifier #1 until either the
HOLD key is pressed again, updating #1, or the
system is shut down.
(9) Navigation At Extreme Latitudes (North
Of 70 ºN Or South Of 60 °S).
The procedures listed in this section
contain instructions for operation of the
flight management system at specified
magnetic variation mode. In all cases, the
flight crew of any aircraft operating at
these latitudes must consult the flight
manual supplement in order to obtain
satisfactory performance and accuracy.