As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR SEEMS TO PAINT RED YELLOW GREEN CELLS AT 80 NM OFF NOSE. NO VISUAL WEATHER AHEAD. STAYS AT A CONSTANT 80NM ON SCREEN. GROUNDED - YES. TILT CODE +4 FAULT. PERFORMED FIM 34-43 TASK 816 WITH NO FAULTS EITHER CDS BITE (FAULT CORRECTED). ETOPS SIGNIFICANT SYSTEM. GROUND VERIFICATION SUCCESSFUL.