As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AC EMERGENCY BUS OFF LIGHT ILLUMINATED AFTER TAKEOFF. THIS PROBLEM AFFECTED MULTIPLE COCKPIT INSTRUMENTS. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE LEFT AC GENERATOR AND GENERATOR CONTROL PANEL. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.