As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR DATA COMPUTER FAILED IN FLIGHT. INDICATIONS AUTO PILOT TURNED OFF AND FLAGS ON CAPT AIRSPEED, ALTIMETER AND VSI. COMPLETED QRH ADC RESET MOMENTARYILY THEN FAILED AGAIN. MAINTENANCE REPLACED NR 1 ADC P/N 822-0370-123, S/N ON 2853, S/N OFF 3892. OPS CHECK GOOD IAW THE SF340 MM.