As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T1382/02DEC - DURING CLIMB CREW HEARD A LOUD BANG ON LEFT SIDE OF AIRCRAFT AND NUMBER ONE ENGINE PRESSURE RATIO ROLLED BACK. REDUCED NUMBER ONE ENGINE TO IDLE. ALL INDICATIONS NORMAL AT IDLE POWER. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED NUMBER ONE ENGINE DUE TO TURBINE BLADE FAILURE AND OVER ENGINE GAS TEMPERATURE ON 04 DEC AT DFW. SYSTEM GROUND CHECKED NORMAL OPERATION.