As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POS - CREW REPORTED BIRD STRIKE TO LEFT ENGINE ON TAKEOFF. VIBRATION ON LEFT ENGINE WENT TO MAXIMUM. EMERGENCY DECLARED RETURNED POS LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED DAMAGED FAN BLADES NUMBER 32 AND 33. SYSTEM GROUND CHECK NORMAL OPERATION.