As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSP/YQT - FLT 3084 - IN CRUISE FLIGHT TO YQT, THE LEFT GENERATOR FAIL LIGHT ILLUMINATED. THE CREW WAS UNABLE TO RESET THE GENERATOR. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED THE LEFT GENERATOR CONTROL UNIT. SYSTEM OPERATED SATISFACTORILY. (X)