As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT HAD TO MAKE AN EMERGENCY LANDING WITH PATIENT ON BOARD DUE TO A CAUTIONARY FIRE DETECT LIGHT. THE TROUBLESHOOTING PROCEDURES WERE WENT THROUGH AND FOUND HALF WAY THROUGH THE FIRE DETECTION LOOP WERE IT WAS CLIPPED TO THE AIRFRAME THERE WAS NICK. THE NICK IS WHAT CAUSED THE INDICATION.