As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5175 - DURING APPROACH INTO MSP SELECTED GEAR DOWN AND RECEIVED LEFT MLG DISAGREE MESSAGE. DURING GO-AROUND AFTER APPROX 1 MIN THE LEFT MLG SHOWED DOWN AND LOCKED GIVING 3 GREEN INDICATION. AIRCRAFT LANDED SAFELY. REMOVED AND REPLACED LEFT MLG UPLOCK ASSEMBLY.