As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRIOR TO DESCENT NR 3 FIRE WARNING HANDLE ILLUMINATED AND MASTER FIRE WARNING BELL SOUNDED INTERMITTENTLY THEN EXTINGUISHED FIRE LOOP TESTED OK. RESOLUTION DESCRIPTION: XFERRED TO DMI 33829 PER MEL 26-2-3 PLACARD NR 3 ENG "B" LOOP INOP. CAT C & MXC NOTIFIED.