As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR DOES NOT WORK PROPERLY IN "AUTO" MODE. ERRONEOUS INFORMATION DISPLAYED ON FIRST OFFICER SIDE WHEN WX OR WX+T SELECTED. NO PRECIPITATION DISPLAYED ON EITHER SIDE WHEN FLYING THROUGH A RAIN SQUALL. GROUNDED - YES. RESET SYSTEM, GROUND FUNCTIONAL CHECK GOOD IAW B737-900 AMM 34-43-00-710-802-001.