BendixKing KFC 500 - Manual (Page 29)

Preflight Procedures
48 June 15, 1999 006-18081-0000 49
KFC 500
Dual
SCAS/Autopilot
and single
Flight Director
Operational Examples
006-18081-0000 March 27, 1998
system may still be displayed if
that axis has failed preflight test.
Autopilot/SCAS engagement is
allowed using axis/axes that
passed test and are valid.
Individual roll and pitch axis fail-
ures are displayed as AP and
SCAS failures on the non-
selected side but will revert to
single axis display when that
side is reselected. The Bell 430
flight manual should be con-
sulted to determine limitations
on usage with only partial sys-
tem availability.
Air Data System Self Test
Verify correct barometric setting on
the altimeter/vertical speed indicator.
Press the PUSH BARO TEST knob.
a. All segments of the gas dis-
charge displays are illuminated
for approximately 3 seconds.
The illumination can be
extended to 13 seconds by
holding in the PUSH BARO
TEST knob.
b. Red ALT and VS flags come
into view.
c. Vertical Speed bug comes into
view and follows the VS pointer.
d. When the display segments test
has been completed the KDC
481T will set the Altitude Select
display at 28,000 ft. and will set
the displayed aircraft altitude to
26,800 ft. The aircraft’s dis-
played altitude will then ramp up
to the selected altitude at a
3500 ft. per minute rate of climb.
e. As the displayed aircraft altitude
increases the altitude alerter
gives an audio and steady
visual alert annunciation at
27,000 ft. At 300 ft. before the
selected altitude, the visual alert
is extinguished and when the
selected altitude is reached a
flashing visual alert is displayed
briefly.
f. When the aircraft’s displayed
altitude has reached the
selected altitude of 28,000 ft.
there will be a 3 second pause,
after which the aircraft altitude
will ramp down to 27,000 ft. at a
3500 ft. per minute rate of
descent.
g. The Vertical Speed bug will
continue to follow the VS pointer
to the 3500 ft. per minute rate of
descent. The altitude alerter
gives an audio and flashing
visual alert 300 ft. below the
selected altitude. The flashing
visual alert will continue until the
aircraft’s displayed altitude
reaches 27,000 ft., it will then be
extinguished.
h. At 27,000 ft. the ALT and VS
flags and FAIL will again be dis-
played, and then clear.
i. The aircraft’s density altitude will
be displayed for approximately
five seconds in the selected alti-
tude window.
BARO
U
P SH
E
T
S T