As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, IN A LEFT TURN TO ASSIGNED HDG, THE LEFT ENGINE STARTED A RAPID SERIES OF COMPRESSOR STALLS, THE ENGINE ROLLED BACK AND STALLS DECREASED BUT REMAINED THROUGH OUT THE EMERGENCY RETURN. TOWER REPORTED HEARING COMPRESSOR STALLS AS DID THE AIRPORT AUTHORITY PERSONNEL. LT ENGINE EXCEEDENCE EICAS MESSAGE DISPLAYED. REMOVED AND REPLACED THE ENGINE.