Filter
Top Products
190-01007-A1 System Maintenance Manual GTN 6XX/7XX Part 23 AML STC
Rev. 7 Page 5-19
5.3.1.10 Third-Party Sensors Related Alerts
Table 5-12. Third-Party Sensor Alert Troubleshooting Guide
Alert Text Possible Cause Corrective Action
STORMSCOPE - Stormscope
is inoperative or connection to
GTN is lost.
Stormscope is not powered up.
Ensure Stormscope is
receiving power and is
connected to ground.
Wiring corrections are
incorrect.
Check wiring.
Stormscope is reporting a
system failure.
Refer to Stormscope
installation manual for
troubleshooting.
STORMSCOPE - Invalid
heading received from
Stormscope.
The Stormscope is receiving
invalid heading.
Refer to Stormscope
installation manual for
troubleshooting.
DATA SOURCE - Pressure
altitude source inoperative or
connection to GTN lost.
The GTN is configured to
receive pressure altitude, but is
not receiving it from any
source.
If the GTN is not expected to
receive pressure altitude,
ensure that “Altitude Source
Input” is configured for “Not
Connected”.
Check RS-232 port setting for
the port that the device is
connected to.
Verify the configuration of the
other device.
Verify the GTN RX channel is
connected to the remote
device TX channel.
Verify there is only one TX
source per RX port.
Check wiring.
DATA SOURCE - Heading
source inoperative or connection
to GTN lost.
The GTN is configured to
receive heading, but is not
receiving it from any source.
If the GTN is not expected to
receive heading, ensure that
“Heading Source Input” and
“Synchro Heading Input” (GTN
7XX only) are configured for
“Not Connected”.
Check ARINC 429 or RS-232
port setting for the port
connected to the heading
source.
Verify the configuration of the
heading source.
Check the RS-232, ARINC
429, or Synchro (GTN 7XX
only) wiring between the GTN
and the heading source.