As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1040, LAX-FLL. (AIRCRAFT PERFORMED AN AIR TURN BACK TO LAX) 'WX RADAR FAILURE WXR - R/T; REMOVED AND REPLACED RTU RADAR TRANSCEIVER UNIT FIN 13SQ1. OPS CHECK GOOD REF AMM 38-41-51 AND REMOVED AND REPLACED DRIVE WEATHER RADAR ANTENNA MOUNT FIN 7SQ REF AMM 34-41-11. OPS CHECK GOOD. NO FAULTS.'