As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WXR FAIL MESSAGE DISPLAYED ON BOTH CAPT AND FO RADAR DISPLAY. ALSO DID NOT TEST. NO PATTERN FOR TEST ON EITHER DISPLAY. GROUNDED - YES. WXR WAS INOP AS DESCRIBED. CYCLED WXR RADAR C/B. WXR RADAR CAME BACK, OMF FAULT HISTORY HAD WXR PROCESSOR 1 INTERNAL FAULT 34-43100. DUE THAT AND WXR FAILURE YESTERDAY, REMOVED AND REPLACED WXR PROCESSOR IAW B737-9 AMM 34-41-42. B737-9 IFIM 34-41-00-810-836. INSTALLATION/OPS TEST GOOD.