As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER AFT BODY OVERHEAT ILLUM DURING FLT, LIGHT FLICKERED CONTINUOUSLY WHILE CRUISING. COMPLIED WITH CK LIST PROC. REPEAT WRITE UP. REMOVED AND REPLACED FIRE DETECTOR, RAN ENGINES AT HI POWER FOR APPROX 10 MIN. OVERHEAT DETECTOR SYS OPER CK NORMAL PER 727 MM 24-14-00.