As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1055 - AFTER TAKEOFF, LEFT ENGINE VIBRATING. VIBRATION GONE WHEN ENGINE PULLED BACK TO IDLE. LEFT ENGINE OIL TEMPERATURE 30 DEGREES HIGHER THAN RIGHT ENGINE OIL TEMPERATURE. RETURNED AND LANDED DFW WITHOUT INCIDENT. REPLACED LEFT ENGINE. GROUND CHECK NORMAL OPERATION. FOD DAMAGE TO TURBINE AND EXHAUST AREA ACOUSTICAL LINER. (M)