As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OVERHEAT CIRCUIT L2 STATUS MSG IN VIEW LWR EICAS. MX MSG 26-10242 FIRE LOOP 2 LEFT ENGINE SHOWING ON MAT. REF FIM 26-11 TASK 811. INSP LOOPS, NO OBVIOUS DEFECTS. REQ OHM AND MEG OHM CHECK OF DETECTORS. FOUND LWR AFT DETECTOR M26005 LOOP 2 OPEN REF FIM 26-11 TASK 809-810. REPLACED DETECTOR 2. FIRE TEST PASSED OK AND NO MESSAGES DISPLAYED.