As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR AHNUC FAIL ON HD DURING CRUISE FLIGHT WITH WX RADAR ON IN ETOPS AIRSPACE THE FAIL LIGHT WAS INTERMIT DURING THE FIRST HALF OF FLIGHT. DURING THE SECOND HALF OF FLIGHT THE WX RADAR WORKED OK. REMOVED AND REPLACED WEATHER RADAR RECEIVER TRANSMITTER IAW AMM 34 43 41 400 801. PERFORMED OPERATIONAL CHECK IAW 34 43 00 710 802 001, OPERATIONAL CHECK GOOD.