What was found
GIA FAIL 2 AMBER CAS: GSD FAIL 2 CAS MESSAGE DISPLAYED. CRUISE FLIGHT AT FL430, ALL FLIGHT CONDITIONS NORMAL, NO ICING, VFR. COMPLIED WITH THE GAD FAIL 2 ABNORMAL PROCEDURE. LANDING GEAR BLOW DOWN COMPLETED PER THE ABNORMAL PROCEDURE. WE CURRENTLY DO NOT HAVE ANY CAS MESSAGES POSTED FOR THE GSD 2 OR GIA 2. VERIFIED THE NUMBER TWO GSD AND THE GIA NUMBER 2 HAVE NO ERRORS OR SOFTWARE ISSUES. VERIFIED THAT THERE WAS NO DATA BUS ERRORS AND SYSTEM MESSAGES. VERIFIED THE NUMBER TWO GSD AND THE GIA NUMBER 2 HAVE NO ERRORS OR SOFTWARE ISSUES. VERIFIED THAT THERE WAS NO DATA BUS ERRORS AND SYSTEM MESSAGES. WORK PERFORMED IAW CESSNA 680A AMM SECTIONS 34-60-00 AND 42-10-00.