As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE WX RADAR DOES NOT COME OUT OF TEST MODE, TEST PATTERN ON BOTH CA AND FO DISPLAYS TEST MODE IS SHOWN NO MATTER WHAT POSITION TEST SW IS IN. GROUNDED - YES. CYCLED WX RT C/B P-61 PANEL, PERFORMED OPERATIONAL TEST OF WX PER AMM 34-43-00, OPS CHECK NORMAL.