PDF Expand all questions How does EASA classify antenna installations? This question is answered by reference to the table FAQ table of design change classification. View Was this helpful? Yes No How does EASA classify single and dual GNS4xx/5xx installations? This question is answered by reference to the table FAQ table of design change classification. View Was this helpful? Yes No How does EASA classify Transponder Mode S Diversity and dual Transponder installations? This question is answered by reference to the table FAQ table of design change classification. View Was this helpful? Yes No How do I know whether my proposed change is Minor or STC? This question is answered by reference to the table FAQ table of design change classification. View Was this helpful? Yes No