As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT DC GEN OVERHEAD LIGHT ILLUMINATED WHILE IN FLIGHT, QRH PROCEDURE FOLLOWED. GEN WAS ABLE TO BE RESET BUT WITHIN 1 MINUTE TRIPPED AGAIN. AFTER ILLUMINATING FOR THE SECOND TIME THE LEFT GEN OVERTEMP LIGHT ILLUMINATED AND REMAINED ON. RETURNED TO DTW. MAINTENANCE REPLACED LEFT DC GEN. ALL CHECKS GOOD.