As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MASTER WARNING WITH AFT CARGO SMOKE DET ILLUMINATED AND FIRE WARNING BELL FOR 15 SEC. FLIGHT ATTENDANT VERIFIED NO SMOKE ON FUMES IN COWER REST FNCICITY AND RESET DETECTION LIGHT REMAINS OUT. VERIFIED WITH CREW THAT SMOKE DETECTION WAS FOR LLCR ONLY, NO ALARM FOR AFT CARGO DETECTION. LLCR INSPECTED AND VERIFIED NO EVIDENCE OF SMOKE OR FIRE. LLCR DETECTION SYSTEM TESTED NORMAL