As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO FIRE INDICATED PERFORMED QRC RETURNED TO KCMH VISUALLY INSPECTED AFT PIT, NO EVIDENCE OF ACTUAL FIRE OR SMOKE IN AFT PIT. AFT CARGO FIRE LIGJT (FALSE ALARM) IS FAULT CODE 261 225 45. PERFORMED FIM 26-16 TASK 801. NO DETECTOR FAULTS FOUND BY BITE. REPLACED ALL AFT CARGO SMOKE DETECTORS PRECAUTIONARY (L/P 3462300). REPLACED AFT CARGO CEU PRECAUTIONARY (L/P 3462312). REPLACED CARGO FIRE CONTROL PANEL PRECAUTIONARY (L/P 3462342). ALL INSTALLATION AND BITE TESTS GOOD.