What was found
FIRST OFFICER'S COMPASS FLAGGED ON HSI AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. SYSTEM OPERATED NORMALLY DURING GROUND CHECK. DISCREPANCY COULD NOT BE DUPLICATED AND AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FIRST OFFICER'S COMPASS FLAGGED ON HSI AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. SYSTEM OPERATED NORMALLY DURING GROUND CHECK. DISCREPANCY COULD NOT BE DUPLICATED AND AIRCRAFT RETURNED TO SERVICE.