As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A LEFT HAND ENGINE VIBRATION MESSAGE AFTER TAKEOFF. CREW ELECTED TO RETURN TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE LEFT HAND ENGINE FAN BLADES. MAINTENANCE FOUND AND UNSTUCK A FAN BLADE IN ACCORDANCE WITH THE GE CF34-8C MAINTENANCE MANUAL. MAINTENANCE PERFORMED OPERATIONAL CHECKS AND FOUND TO BE WITHIN LIMITS AT THIS TIME. AIRCRAFT WAS RELEASED FOR SERVICE.