As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED STRONG OIL ODOR IN THE CABIN FOLLOWED BY A STRONG VIBRATION IN THE TAIL DURING CLIMB OUT. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. FOUND EVIDENCE OF BIRD STRIKE TO LT ENGINE WITH TWO BLADES BENT & NR 1 BEARING LEAKING. REPLACED LT ENGINE AT DFW ON 08/11/2013. SYSTEM GROUND CHECKED NORMAL OPERATION OPEN.