As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE, THE CARGO FIRE LIGHT ILLUMINATED, CREW FIRED THE NR 1 CARGO FIRE EXTINGUISHER AND DIVERTED TO GGG. REPLACED THE NR 1 CARGO FIRE EXTINGUISHER AND THE FORWARD AND AFT CARGO FIRE DETECTORS. THE AFT DETECTOR WAS OEM WITH 9991 HRS TSN AND THE FWD DETECTOR HAD 5290 HRS TSR.