As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED PWS FAULT ON T/O THRU 4000 FT, ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING FOR PWS FAIL IAW FIM 34-43-00-810-815 WEATHER RADAR OPS TEST FAILED WITH ANTENNA FAULT. REPLACED WEATHER RADAR ANTENNA DRIVE UNIT IAW MM 34-43-11-000-802 & MM 34-43-11-400-802. CLEANED WEATHER RADAR TRANSCEIVER FAN AND PERFORMED WXR OPS TEST IAW MM 34-43-00-710-802-001. ALL TESTS PASS.