What was found
NR 1 VERTICAL GYRO BECAME INOPERATIVE EN ROUTE. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED NR 1 VERTICAL GYRO, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 1 VERTICAL GYRO BECAME INOPERATIVE EN ROUTE. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED NR 1 VERTICAL GYRO, OPERATIONAL CHECK OK.