As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 3409 EN ROUTE DTW-CHS, THE WEATHER RADAR FAILED R/T MESSAGE SHOWN ON SCREEN. AC DIVERTED TO CVG. MAINTENANCE REPLACED WEATHER RADAR RT/XT BOX WITH SERVICEABLE UNIT PN/OFF 2041217-0414, SN/OFF 7585, PN/ON 2041217-0414 SN/ON 7238 IAW AMM.