As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 330 CARGO SMOKE WARNING LIGHT ILLUMINATED. DECLARED EMERGENCY AND DESCENDED INTO IAH. AT APPROX 2000 FT AGL THE LIGHT EXTINGUISHED. LANDED WITHOUT INCIDENT. FOUND NR 1 SMOKE DETECTOR DEFECTIVE. REMOVED AND REPLACED SMOKE DETECTOR.