As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, CREW REPORTED INTERMITTENT ILLUMINATION OF THE BAG-FIRE ANNUNCIATOR. NO SMOKE OR BURNING ODOR NOTED AND ACFT LANDED SAFELY. MX FOUND A LOOSE CABIN AIR DUCT UNDER THE AFT VANITY. THE DUCT WAS SECURED AND THE SYS OPS CHECK WAS SATISFACTORY.