As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PREDICTIVE WINDSHEAR WARNING AHEAD ON FINAL APPROACH, RADAR LOCKED CLEAR WITH ONLY LIGHT PRECIP. WARNING WENT AWAY AND THEN RETURNED ONCE AIRCRAFT WAS ON THE GROUND WITH WHEEL SPOOL UP. GROUNDED - YES. RAN B737-9 IFIM TASK 31-00-00-810-803, NO EXISTING OR INBOUND FAULTS FOUND. WXRDR OPS TEST OKAY. REF B737-9 AMM 34-41-00.