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, EMERGENCY DESCENT AND LANDING (TYS). CHECKED FOR BLEED AIR LEAKS AND SIGNS OF FIRE, FOUND NR 1 ENGINE FIRE LOOP SHORTED ON OIL TANK, REROUTED FIRE LOOP. OPERATIONAL CHECKS GOOD IAW AMD MM 26-11. AIRCRAFT RETURNED TO SERVICE. (M)