As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 2 ENGINE FIRE DETECTION WARNING LAMP ILLUMINATED DURING FINAL APPROACH TO THE HOME HELIPAD. THE LANDING WAS COMPLETED WITHOUT EVENT AND THE ENGINES WERE SHUTDOWN. NO FIRE OR SMOKE. TROUBLESHOOTING REVEALED A DEFECTIVE FIRE DETECTOR.