What was found
THE WEATHER RADAR IS SPOKING. SENDING DASHED DIAGONAL HASHES PRIMARILY AT THE 10 O`CLOCK & 2 O`CLOCK POSITIONS. CONDITION IS NOT CONTINOUS BUT RATHER PERSISTENT. THIS IS HAPPENING REGARDLESS OF THE RADARS TILT OR RANGE. IT DID PAINT KNOWN & VISIBLE WX. ACFT GROUNDED. R & R WEATHER RADAR ANTENNA DRIVE UNIT OPS NORMAL. GROUND VERIFICATION SUCCESSFUL. REF AMM 34-43-00-710-802-001, 34-43-11-000-801, 34-43-11-400-801, 34-43-11-000-802, 34-43-11-400-802, ETOPS PART VERIFIED, SEAM C.