As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: WEATHER RADAR FAILED. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. TROUBLESHOOTING PER FIM 34-43-00-810-814, NOT FAULTS NOTED, NO FAILT FOUND. OPERATIONAL CHECK GOOD.