Messages
190-02488-01 Rev. B Pilot’s Guide 6-11
Transponder 1/2
overtemp.
GTX 345 1/2 reports that
its internal temperature
exceeds the over
temperature threshold
(GPS 175 & GNC 355
only).
Decrease cabin temperature
and increase cabin airflow
near the transponder. If the
problem persists, contact
dealer for service.
Transponder 1/2
under temp.
GTX 345 1/2 reports that
its internal temperature
is below the normal
operating threshold
(GPS 175 & GNC 355
only).
If the problem persists,
contact dealer for service.
<Unit> needs
service.
Loss of calibration data.
GPS175/GNC 355
cannot communicate
with its configuration
module or other
hardware.
GNX 375 experiences a
fault related to one of
the following.
• ADS-B/Nav
communication
• Altitude encoder
calibration
• Audio ROM
• Configuration
module
• Non-volatile memory
• Suppression bus
Contact dealer for service.
<Unit> SD card is
invalid or failed.
The SD card is
unreadable or corrupt
(i.e., data is unavailable).
1. Reformat the SD card
using an external
computer.
2. Re-insert the SD card in
the slot.
3. Contact dealer if the
problem persists.
User ejects
Flight Stream 510
wireless datacard.
Network connection is
lost.
Restart unit to reconnect.
ADVISORY CONDITION CORRECTIVE ACTION
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