89000109-002
xVue Touch Installation Manual
Rev 2
Page 8-16
© Honeywell International Inc. Do not copy without express permission of Honeywell.
For Use in Non-Certified Aircraft
Loss of air temperature,
TAS and Density Altitude
is reported.
Temperature Probe CBIT
detects a failure.
12
• Inspect the temperature probe wiring
(including the KG 71EXP connector). If
there is no problem with wiring,
replace temperature probe. If prob-
lem persists, replace the KG 71EXP
unit.
• Note: If temperature is out of the
range from -70C to +70C, then air
temperature (and related parameters)
becomes invalid – it is correct system
behavior as the temperature is out of
the system operation range.
Loss of magnetic heading
during flight is reported.
Horizontal magnetic
field strength was less
than 80 miligauss.
NA
• This is normal system behavior –
when horizontal magnetic field
strength is too low, magnetic heading
output is not more reliable.
Magnetometer
availability CBIT detects
a failure.
14
• Check the KMG 7010/MD32 wiring
and circuit breaker (including KMG
7010/MD32 and KG 71EXP connec-
tors).
• If there is no issue with wiring, replace
KMG 7010/MD32. If problem per-
sists, replace the KG 71EXP.
GPS Aiding only is
reported during the
flight.
The airspeed aiding
source was evaluated by
the KG 71EXP as not
reliable.
16
• If the problem is frequent and accom-
panied by significant deviations of IAS,
then the KG 71EXP need to be
replaced. If problem occurs rarely and
without IAS deviation, no action
needed.
“Cross Check Attitude”
message is reported
during the flight, attitude
remains stable and
correct.
The GPS aiding data
accuracy was reduced,
system revered to
airspeed aiding.
17
• No action needed. If problem persists,
the GPS aiding source need to be
inspected.
“Cross Check Attitude”
message is reported
during the flight, attitude
exhibits significant drifts.
HG 1120 sensor
performance degraded.
17
• Replace the KG 71EXP unit.
Table 8-5 KG 71EXP Event Codes
System Behavior
Possible Root Cause
Event
Log
Code
Troubleshooting Action
