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Aviation Alerts and Advisories

Service Advisory 2009 Rev C: False TCAS II Alerts

REVISION C:

Excluded GTS Processor Software Version 3.12.1

PRODUCTS AFFECTED:

GTS 8000 TCAS II systems with GTS Processor Software Version 3.13 and earlier are affected.

NOTE
GTS Processor Software Version 3.12.1 is not affected.

ISSUE:

In rare cases a false TA or RA for traffic targets at ranges greater than 10 NM may be generated. These false TAs and RAs will clear after several seconds.

The system will continue to monitor traffic in the area and generate appropriate guidance for all legitimate traffic targets.

ACTION:

Follow normal operating procedures for all TA and RA traffic targets.

RESOLUTION:

This issue has been fixed in GTS Software Version 3.14.

Service Advisory 2009 Rev C