As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTANT DISPLAY OF ECAM ENG 2 FIRE LOOP 'A' FAULT. REPLACED FIRE LOOP 4001WD2. REF AMM 26-12-17. OPS CHECKS GOOD REF. 26-12-00-710-00 1." REOPENED ON 03MAR12 FOR: MESSAGE RETURNED REPLACED LOOPS 4000WD1 & 3WD2, CHK'D OK ON ENG RUN.