As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, NR 3 ENG FIRE WARNING FIRE HANDLE LT, DETECTOR AND BELL CAME ON WITH LOOP -A- SELECTED -B- LOOP INOP. SHUT DOWN ENG, DISCHARGED BOTTLES. CLEANED CONNECTORS ON NR 3 ENG -A- AND -B-. REPLACED BOTTLES, RAN ENG W/BLDS ON AND OFF AT ALL DIFF PWR SETTINGS PER PFHB. ALL INDS NORM. A/C OK FOR SERVICE.