As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT WITH WX RADAR ON, RECEIVED AN AMBER "WX STAB" FOLLOWED BY AN AMBER 'WX FAIL" MESSAGE ON ND. APPROX 5 MINUTES LATER A "PWS FAIL" ALSO DISPLAYED. GROUNDED-YES. CREW DEBRIEF REPORTS WX RADAR RETURNED TO NORMAL AFTER 30 MINUTES, FOR DURATION OF FLIGHT. PERFORMED B737-900 FIM 34-43 TASK 822-, SYSTEM BITE IS NORMAL.