As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL350, AIRCRAFT EXPERIENCED A LOUD BANG AND FAILURE OF NR 1 ENGINE (ITT WENT TO RED AND N1 APPROXIMATELY 20 PERCENT). ENGINE WAS SHUTDOWN. DURING DESCENT EXPERIENCED VIBRATION IN AIR FRAME AND CONTROL COLUMN. POST FLIGHT INSPECTION REVEALED EXTENSIVE DAMAGE TO THE NR 1 ENGINE REAR TURBINE BLADES AND COOKIE CUTTER. NO EXTERNAL DAMAGE WAS NOTED. ENGINE WAS REPALCED. (K)