As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR FAILED WHEN RR/T SELECTED. TO GET SYSTEM BACK. LR/T IS SELECTED AND PILOTS MUST SELECT TERR ON ND MAP CONTROLLER. THEN BACK TO WXR. STATUS MESSAGE WXR SYSTEM EVEN WHEN LR/T SELECTED RADAR TILT IS INTERMITTENT. THE AIRCRAFT WAS GROUNDED. WAVE GUIDE SWITCH WAS REPLACED. ACCOMPLISHED WEATHER RADAR AND GPWS OPERATIONS CHECK AS PER AMM 34-46-00 AND 34-43-00. ALL OPERATIONS CHECK NORMAL.