Honeywell Bendix/King KFD 840 Primary Flight Display
Altitude Area KFD 840 PG PN 7450-0840-01
5-4 Rev C May 28, 2010
© Honeywell International Inc. Do not copy without express permission of Honeywell
ALTITUDE DATA INVALID
If altitude data is invalid, all altitude data is
removed and a red X is placed over the entire
altitude tape area. Loss of air data will also
cause the loss of TAS (true airspeed),
standard rate of turn indicator, and winds (if
installed).
ALTITUDE SELECT READOUT AND BUG
Press the right knob three times to activate
the Altitude bug ALT. Turn the knob clockwise
to increase the ALT
counterclockwise to decrease the value.
Pressing and holding the right knob for more
than 2 seconds when ALT is highlighted will
cause the altitude bug to SYNC, synchronize
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