As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. FLIGHT HAD AFT CARGO FIRE INDICATION, BLEW THE FIRE BOTTLES THEN CALLED DISPATCH AND ADVISED THEY WERE DIVERTING TO BDA. EMERGENCY DECLARED, FLIGHT LANDED OVERWEIGHT AND WITHOUT INCIDENT. REMOVED AND REPLACED AFT CARGO SMOKE DETECTOR PER AMM 26-16-04.