As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 725 - IAH-TOL - PRIOR TO DESCENT INTO TOL, MAIN CARGO CABIN SMOKE DETECTOR LIGHT CAME ON. CHECKED CABIN NO SMOKE NOTED. MAINTENANCE CHECKED SMOKE DETECTOR SYSTEM NO DEFECTS NOTED. SYSTEM OPERATIONAL CHECKED NORMAL. AIRCRAFT RELEASED FOR FLIGHT. (M)