As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY LANDING ON ACCOUNT OF AIR-DATA COMPUTER FAILURE. PILOT RECIEVED ADR1 FAULT AT CRUISE, PERFORMED ECAM PROCEDURE UNABLE TO RECOVER CA FLT INSTRUMENTS. MAINTENACE REMOVED AND REPLACED THE #1 ADIRU IAW AMM 34-12-34. ACCOMPLISHED LAND CATIII CAPABILITY TEST IAW AMM 22-97-00. ALL CHECKS NORMAL.