As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 3233, THE CREW REPORTED A VIBRATION FROM THE NOSE AREA AFTER TAKEOFF. THE AIRCRAFT RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND THE NOSE GEAR DOORS STAYING OPENED. MAINTENANCE REPLACED THE NOSE GEAR DOOR PROXIMITY SWITCH. OPERATIONAL CHECKS WERE GOOD.