As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FL250, MASTER WARNING, CHECK FIRE DETECT. E/A CHECKLIST TO AFT BAGGAGE FWD AND AFT FIRE BOTTLES LOW. RETURNED TO FIELD LANDING UNEVENTFUL. NO FIRE. REPLACED THE LOW-RATE FIRE-EXTINGUISHER BOTTLE AND RE-INSTALLATION OF HIGH-RATE FIRE-EXTINGUISHER BOTTLE. OPS CHECK GOOD. RETURNED TO SERVICE.