As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS FIRE WARNING ILLUMINATED IN FLIGHT. NO OTHER INDICATIONS OF FIRE. HAPPENED 3 TIMES DURING FLIGHT. MAINTENANCE REPLACED #2 ENGINE RIGHT AND LEFT CORE DETECTORS IAW FIM 26-10-00. BITE CHECKS GOOD PERFORMED OPERATIONAL TEST IAW AMM 26-11-00. OPS CHECKS GOOD. PERFORMED ENGINE RUN, NO FAULTS NOTED.