As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BAG BAY FIRE EXTINGUISH BUTTON ILLUMINATED IN FLIGHT WITH NO RELATED MESSAGES. UPON INSPECTION FOUND RED LED FAULT LIGHT DISPLAYED ON AFT CARGO SMOKE DETECTOR. R&R AFT CARGO SMOKE DETECTOR IAW AMM 26-15-01. BAG FIRE EXT BUTTON NO LONGER ILLUMINATED OPS CHECK GOOD OK FOR SERVICE.