As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE WEATHER RADAR FAILED, WOULD NOT PAINT KNOWN WEATHER. AIR RETURN TO MEM. REMOVED & REPLACED WEATHER RADAR TRANSCEIVER/TRANSMITTER IAW SF340 AMM CHAP 34-42-05-4. ALL CHECKS GOOD AT THIS TIME. P/N ON&OFF 622-7337-001, S/N ON 4553, S/N OFF 4623.