As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OVERHEAT LIGHT ILLUMINATED. PERFORMED QRH PROCEDURE, LIGHT STAYED ON. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT, NR 2 ENG FIRE DETECTION OPS NORMAL IAW MM 26-11-00. DUE TO HISTORY, R & R UPPER FAN DETECTOR ASSY, IAW MM 26-11-01. REPLACED LOWER FAN DETECTOR LOOP NR 2 ENGINE AMM 26-11-01. GROUND VERIFICATION TEST PASSED IAW MM 26-11-00.