As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM MSP, LEFT MAIN LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR WAS RETRACTED. RECYCLED GEAR AND LIGHT EXTINGUISHED. FLIGHT CONTINUED TO DESTINATION (ORD) AND LANDED WITHOUT INCIDENT. REPLACED LEFT MAIN GEAR DOWNLOCK SWITCH. OPERATIONAL CHECK OK ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.