As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT FROM CVG AT APPROXIMATELY 300 FT AGL THE LOWER CARGO FIRE WARNING SYSTEM ILLUMINATED AND WARNING BELL SOUNDED. THE DISPLAY READ FIRE IWD. THIS CONDITION LASTED FOR APPROXIMATELY 2 MINUTES. CHECK LIST PROCEDURES COMPLETED. PERFORMED SYSTEM TEST AND ACQUIRED ALL SENSORS. NOTED SOME CONDENSATION IN LOWER PITS. FOUND NO EVIDENCE OF COMBUSTION. LOWER CARGO FIRE WARNING SYSTEM TESTED OKAY. OKAY FOR CONTINUED SERVICE IAW B-M/M 26-16-01.