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2.
D.
(6)
(k)
F1ight Plan Scroll Mode - Once a flight plan has been selected
for display, the crew can then scroll through the entire flight
plan using the FPLN SCROLL buttons on the display controller
(Figure 221).
Selection of the scroll FORE allows the pilot to
move the waypoints of the active flight plan one at a time
through the center of the plan range ring in the forward
(origin to destination) direction. Selection of the scroll
BACK allows the pilot to move the waypoints of the active
flight plan one at a time through the center of the plan range
ring in the backward (destination to origin) direction.
The maximum number of waypoints that can be displayed at one
time is limited to 16. The 16-waypoint window for scrolling
purposes is made up of the past three FROM waypoints and the TO
through the TO+12 waypoints. The scroll window and selected
range will determine the number of waypoints that will be
displayed while scrolling the flight plan.
(7) PLAN Caution and Warning Displays
(a)
IRS Failures and Flags - Failure of the displayed heading is
shown by removing the active flight plan and wind display and
displaying, in red, the label HDG FAIL at the top center of the
plan range ring (Figure 222).
IRS test mode is shown with the label HDG TEST
in the
same
location
as
the
fail
annunciation
discussed
above
(see
Figure
216).
(b)
FMS Failure - A failure of the FMS removes the active flight
plan, navaids, and airports from the display. This indication
will also be given
in the
event
of
an
invalid
heading
display
(Figure
222).
The
digital
GPSD
window
is
replaced
by
amber
dashes.
(c) DADC Failures, Weather Radar Failures - The same indications
are
given
as
previously
described
in the
MAP
mode (paragraph
2.D.(3)(c)).
(d) EFIS Self-Test - This test is initiated through the on-side
display controller TEST mode when airspeed is valid and less
than 60 knots and the WOW switch is active. Selecting the EFIS
self test shows the invalid flags for the following plan
display parameters:
.
IRS
DADC
. VERT TRK, TRK CHG Annunciations
22-14-00
Page
259
Aug 15/91
Use
or
disclosure
Of information
on
thw
page
is
subject
to
the
restrictions
on
the
title
page
of
this
document.
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