As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED VIBRATION FROM RIGHT ENGINE ON CLIMBOUT FROM CLT. AIRCRAFT RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED CHECKS AND GROUND RAN THE ENGINE USING THE AIRCRAFT MAINTENANCE MANUALS. VIBRATION READINGS WERE WITHIN LIMITS. AIRCRAFT WAS RELEASED FOR SERVICE.