As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1938 - CMH-LGA - AIR TURNBACK DUE TO COMPLETE RADAR FAILURE. ANTENNA LIGHT FLASHING, WORKS FOR 15 SECONDS THEN OFF FOR 2 TO 4 MINUTES. AIRCRAFT RETURNED TO CMH AND LANDED WITHOUT FURTHER INCIDENT. CMH MX REMOVED AND REPLACED RADAR ANTENNA, OPS CHECK GOOD. (W)