As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5312 - EN ROUTE FROM RDU TO MCO RADAR SHOWED RADAR NOT AT THIS RANGE AND ALL DISPLAY RANGES BOTH SIDES. AIRCRAFT DIVERTED TO SAV AND LANDED SAFELY. PERFORMED TEST OF WEATHER RADAR SYSTEM ON GROUND WITH CREW. RESET SYSTEM AND NO DEFECTS NOTED.