As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1319 - EN ROUTE DFW-SNA - ON CLIMB-OUT, DETECTED A LOUD BANG AT NR 1 SIDE ENGINE. RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT. REPLACED NR 1 SIDE ENGINE. FOURTH STAGE TURBINE BLADES FAILED AT OR NEAR THE ROOT. LEADING EDGE STAGE 3 TURBINE BLADES WERE DAMAGED. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)