As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT EN ROUTE TO SJC, TURNED THE WEATHER RADAR ON AND IT DID NOT WORK. WEATHER IN THE AREA SO CREW RETURNED TO PHX FOR REPAIR. CREW LANDED AIRCRAFT WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE WEATHER RADAR TRANSCEIVER. OPERATIONAL TESTS WERE GOOD. CONFIRMED FAILURE. REPLACED A2AA2U5 AND A2A2VR25 AND ALIGNED A5 TO CORRECT LOW TRANSMITTER POWER. INSTALLED SB 86. TESTED IAW 34-45-21 REV 9.