As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN USING AUTOPILOT 1FMGC DROPS OUT OF MNGD SPEED AND NAV. REVERTS TO SLCTD SPD AND HDNG TBLSHT & SUSPECT FAC NR 1. FAC 1 & 2 SWAPPPED FOR T-S, A-C REMOVE FROM CAT II & III UNTIL SATISFACTORY AUTOLAND TEST ACCPD. A-C IS DOWNGRADED TO CAT I STATUS. ACCOMPLISHED SATISFACTORY CAT III TEST PER MM. AC RETURNED TO CAT III SERVICE.