As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR FAILURE, RTFL. MESSAGE DISPLAYED. FOLLOWED PROCEDURE IN FM, NO HELP. ATTEMPTED CB RESET, FAIL MESSAGE RETURNED. ACP'D SYSTEM CHECK OF THE WX RADAR, NO SCAN SWEEP AND FAILURE MESSAGE FAULTED THE ANTENNA. REPLACED THE DRIVE ASSY & ANTENNA PER MM. ALSO DUE TO INTERMITTENT INPUT REPLACED THE CONTROL PANEL PER MM. SYSTEM CHECKED OK REF FAULT ISOLATION CHECK. DRIVE ASSY MR43183, CONTROL PANEL MR43155 ANTENNA.