As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT FLT 1085 EN ROUTE CLT TO MCO. AFTER TAKEOFF, WHEN GEAR HANDLE PLACED UP, RECEIVED EICAS MESSAGE "GEAR DISAGREE", AND "GEAR DOORS". AIRFRAME VIBRATION WAS EXPERIENCED ABOVE 230 KIAS. THE CREW DECIDED TO RETURN TO CLT FOR MAINTENANCE. NO EMERGENCY WAS DECLARED. THE FLIGHT RETURNED TO CLT WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT MAIN GEAR RETRACT ACTUATOR.