Issues SAIB For TAS600A, TAS600, And 9900BX Systems The FAA has published a Special Airworthiness Information Bulletin regarding an airworthiness concern with the display of intruder aircraft vertical trend indications on Avidyne TAS600A, TAS600, and 9900BX Traffic Advisory Systems.
Source: aero newsFAA Warns Of Airworthiness Concern With Avidyne Traffic Advisory Systems