As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 ENG FIRE WARNING INTERMITTENT AFTER ENG FIRE CHECKLIST COMPLETE. LIGHT AND BELL INTERMITTENT, TRIED BOTH LOOPS. FOUND LOOSE GROUND WIRE ON NR 4 FIRE HANDLE. RE-SECURED GROUND WIRE ON NR 4 FIRE HANDLE, SYS GROUND OPS CHECK NORMAL IAW M/M 26-10-0. AIRCRAFT ON GROUND. FLT 2051.