As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR FAILED SHORTLY AFTER TAKEOFF. DUE TO DESTINATION WEATHER, FLIGHT DECLARED AN EMER & RETURNED WITHOUT FURTHER INCIDENT. FOUND DUST BUILD UP ON T/R UNIT RACK CONNECTOR PINS. CLEANED CONNECTOR, R & R WEATHER RADAR CONTROL PANEL IAW MM 34-43-02. INSPECTED RADAR ANTENNA ASSEMBLY & ACCOMPLISHED WIRING CHECKS. THE ACFT WAS GNDED.