As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YELLOW "PWS FAIL" DISPLAYED ON BOTH MFDS DURING TAKEOFF AND INITIAL CLIMB. GROUNDED - YES. ACCCOMPLISHED B737-900 FIM 34-43 TASK 815 NO FAULTS FOUND WEATHER RADAR OPS TEST PASSED, PER FIM THERE WAS AN INTERMITTENT FAULT. NO 30 DAY HISTORY.