As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT LWR FWD CARGO FIRE WARNING BELL- NO EICAS MESSAGE BUT WARNING LIGHT IN FWD LWR CARGO FIRE SWITCH. QRH PROCEDURES ACCOMPLISHED. LOWER CARGO CHECKED AND NO EVIDENCE OF FIRE, SENSORS CHECKED AND CLEANED . FIRE TEST ACCOMPLISHED; AND OK. LOWER FWD AND AFT CARGO TO REMAIN EMPTY DUE FIRE BOTTLES EXTINGUISHED. FIRE EXTINGUISHING SYS DEFERRED.