As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 5074 - ATO - AT 20KTS DUE A WINDSHEAR WARNING. NO WEATHER IN THE AREA AT THE TIME. CORRECTIVE ACTION: PERFORMED SYSTEM BITE. NO FAULTS WERE FOUND OR DOWNLINKED. DEFERRED PREDICTIVE WINDSHEAR SYSTEM PER MEL. LATER, REPLACED WEATHER RADAR TRANSCEIVER.