As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE BELL HAS GONE OFF 3 TIMES W/ NO EICAS MSG DURING PRE-FLIGHT SETUP. PERFORMED TROUBLESHOOTING IAW FIM 31-51 FT 803. DURING VISUAL INSPECTION OF CARD M1000 FOUND OVERHEATED RESISTOR AND PINS ON CARD. CARD WAS LAST SENT TO REPAIR FOR THE SAME ISSUE. RECOMMEND REPLACEMENT OF CARD M1000. SEE LP 891826-5 FOR CONTINUATION. REMOVED AND REPLACED BELL/CHIME MODULE M1000 IAW B767 AMM 31-51-04 OPS CHECK GOOD