As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITHIN A MINUTE OR 2 OF THE LANDING, THE PILOT OBSERVED THE FIRE WARNING LIGHT FLICKER ON AND OFF. LANDED AT BASE WITHOUT ANY PROBLEMS. MX INVESTIGATED AND DISCOVERED BROKEN WIRE AT LT FIRE DETECTOR. WIRE WAS REPAIRED, OPS CHECK COMPLETED OK & ACFT RETURNED TO SERVICE.