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 NOT DECLARED DUE TO: "PWS FAIL" AND "WXR FAIL" ANNUNCIATORS DISPLAYED ON BOTH NAVIGATION DISPLAYS. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT ORD. TROUBLESHOOT SYSTEM NO CURRENT FAULT IT SHOWS MAINT MSG 34-43100 ON LAST FAULT HISTORY. REMOVE AND REPLACED WEATHER RADAR PROCESSOR [M2771]. PER AMM 34-41-42. OPERTIONAL CHECK GOOD.