BendixKing KFD 840 - Manual (Page 92)

Honeywell Bendix/King KFD 840 Primary Flight Display
Emergency Operations KFD 840 PG PN 7450-0840-01
11-2 Rev C May 28, 2010
© Honeywell International Inc. Do not copy without express permission of Honeywell
ADC health is determined by internally monitoring the voltage levels
of the ADC throughout flight. This monitor does not detect or display
failures for blocked pitot/static port(s). Symptoms of a blockage of
the Pitot/Static system would manifest themselves in a manner
similar to a traditional Pitot/Static system.
ATTITUDE FAILURE, AHRS FAILURE
The “ ATTITUDE FAILURE ” message indicates that the AHRS
(Attitude and Heading Reference System) has failed and the data
can no longer be expected to be accurate. The KFD 840 will display
a black background with the “
ATTITUDE FAILURE ” message in red
as shown below, indicating that there has been a failure of the
AHRS.
The pilot must fly using the standby instruments when the AHRS has
failed.
Figure 11-2: Attitude Failure