As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE DETECTOR FIRE CIRCUIT GRD LIGHT ILLUMINATED DURING CRUISE. DURING DESCENT WITH THRUST LEVERS IDLE THE LIGHT WENT OUT. WHEN PARKED THE LIGHT ILLUMINATED. FOUND AFT LOOP CONNECTOR ON NR 3 ENG OIL SOAKED. ELECTRICAL CONNECTOR CLEANED. FIRE DETECTION SYST FUNCTIONED PER MM 26-11-00 WITH NO FAULTS.