As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN RADAR NOT WORKING IN AUTO MODE. MANUAL WORKS AS IT SHOULD. GROUNDED-YES. REMOVED AND REPLACED WEATHER RADAR CONTROL PANEL, REF B737-900 AMM 34-43-91-400-801. OPERATIONS NORMAL, REF AMM 34-43-00-710-802-001. ACCOMPLISHED GROUND VERIFICATION TEST, ALL TEST SUCCESSFUL.