As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED VIBRATION & HEARD LOUD BANG, THEN SAW N1 & N2 ON LT ENG DECREASING & ITT RISING UNTIL IT EXCEEDED 900 DEG C. PULLED LT ENG BACK TO IDLE UNTIL SHUTDOWN, CHECKLIST COULD BE COMPLETED. N1 & N2 CONTINUED TO ROTATION, ITT WENT TO ALMOST ZERO. VIBRATION STILL EVIDENT IN AIRFRAME & IN THRUST LEVERS. DIVERTED, LANDING WEIGHT 43000. BTMS READING 6645, LANDING WAS SMOOTH. INSPECTED LT ENG NO EXTERNAL DAMAGE NOTED. R & R ENG.