As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THE CREW REPORTED THAT THE WEATHER RADAR WAS PAINTING A LARGE RETURN ON THE RIGHT SIDE OF THE SCREEN WHEN THE AIRCRAFT BANKED. DUE TO WEATHER EN ROUTE AND AT DESTINATION THE CREW ELECTED TO RETURN TO CAK. MAINTENANCE REMOVED AND REPLACED THE WEATHER RADAR RECEIVER/TRANSMITTER/ANTENNA UNIT IAW CRJ200 AMM 34-41-01-400-801. FUNCTIONAL AND OPERATIONAL CHECKS WERE GOOD. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.