What was found
DURING CRUISE, FLIGHT WEATHER RADAR BECAME UNRELIABLE. AIRCRAFT RETURNED TO DCA AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE, FLIGHT WEATHER RADAR BECAME UNRELIABLE. AIRCRAFT RETURNED TO DCA AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER, OPERATIONAL CHECK OK.