As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE CLIMB BETWEEN 12000 AND 15000 FT, A LOUD BANG WAS HEARD, OBSERVING PARAMETERS OF THE LEFT ENGINE OUT OF RANGE IN RELATION TO THE POSITION OF THE THROTTLE LEVER OF THE SAME ENGINE, PROCEEDING TO SHUTDOWN THE LEFT ENGINE PER QRH.