In-flight restart -4, Figure 11-3: heading fail – BendixKing KFD 840 User Manual

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Honeywell Bendix/King KFD 840 Primary Flight Display

KFD 840 PG PN 7450-0840-01 Emergency Operations
Rev E Oct 15, 2010 11-3

Honeywell International Inc. Do not copy without express permission of Honeywell

HDG (HEADING) FAIL, CRM FAILURE (COMPASS
REMOTE MAGNETOMETER)

A “

HDG FAIL

” message indicates that the CRM500, Compass

Remote Magnetometer, has either failed or lost communication with
the KFD 840. Loss of communication or internal failure will remove
all heading data from the display; however it will not have any impact
on the pitch or roll attitude display.

The pilot must fly using the standby instruments when the
magnetometer has failed.

Figure 11-3: Heading Fail