What was found
LOSS OF NR 1 RMI AND FIRST OFFICER'S COMPASS OCCURRED AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE COULD NOT DUPLICATE PROBLEM ON GROUND. REPLACED NR 1 DIRECTIONAL GYRO AND NR 1 RMI AS A PRECAUTION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOSS OF NR 1 RMI AND FIRST OFFICER'S COMPASS OCCURRED AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE COULD NOT DUPLICATE PROBLEM ON GROUND. REPLACED NR 1 DIRECTIONAL GYRO AND NR 1 RMI AS A PRECAUTION.