As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT AT APPROX FL 250, THE AFT CARGO SMOKE LIGHT CAME ON WITH ALL ECAM WARNINGS. LIGHT WENT OUT WHEN NR 1 AGENT DISCHARGED. REMOVED AND REPLACED AFT CARGO SMOKE DETECTORS IAW MM 26-16-11-04, PERFORMED OP'S CHECK AND TEST IAW MM 26-16-00-05-01. OP'S CHECKED AND TESTED GOOD. VISUALLY CHECKED AFT CARGO BAY AND TAILCONE COMPARTMENTS VISUALLY. NO ABNORMALITIES NOTED AND NO ODORS PRESENT.