What was found
WEATHER RADAR WORKED OK ON GROUND, BUT WOULD NOT PAINT ANYTHING IN FLIGHT. DUE TO WEATHER EN ROUTE, FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER, ANTENNA, AND NR 1 VERTICAL GYRO. SYSTEMS TESTED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WEATHER RADAR WORKED OK ON GROUND, BUT WOULD NOT PAINT ANYTHING IN FLIGHT. DUE TO WEATHER EN ROUTE, FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER, ANTENNA, AND NR 1 VERTICAL GYRO. SYSTEMS TESTED OK.