As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WINDSEHAR ALERT EICAS ON TAKE OFF, THEN DURING CLIMB 1 RADAR SYS FAILED (WXR SYS STATUS H.) SWITCHED TO 2ND RADAR WHICH THEN ALSO FAILED. REFERED TO QRH FCOM, MEL. CONTECTED DISPATCH & MOC. DETERIORATING WEATHER AT DESTINATION & ALT FORCED RETURN. R & R WEATHER RADAR ANTENNA DRIVE ASSY IAW AMM 34-43-05. OPS CHECK OK.