As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT INTO RDU DSCH LIGHT CAME ON FOR THE NUMBER ONE BOTTLE FOR THE CARGO DETECTION SUPPRESION SYSTEM. LATER ON FIRE WARNING LIGHT CAME ON. REPLACED FIRE BOTTLE, DIVERTER VALVE, AND CONTROL PANEL. SYSTEM CHECKS GOOD EXCEPT NUMBER 2 EXTINGUISHER LIGHT REMAINS ILLUMINATED. VERIFIED BOTTLE DID NOT DISCHARGE. PLACARD BOTTLE INOP.