As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FIRE WARNING LIGHT AND BELL ILLUMINATED IN FLIGHT. PERFORMED ENGINE SHUTDOWN AND RETURNED TO DEPARTURE. INSPECTED ENGINE FOR LEAKS AND DAMAGE. TIGHTENED CLAMPS ON BLEED AIR DUCTS AND REPOSITIONED FIRE LOOP IN PYLON. RAN ENGINE OPERATIONAL CHECKS GOOD. (K)