As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCH - FLT 5045 - DURING GROUND STARTING PROCEDURES THE CREW NOTED THAT THE LEFT AC GENERATOR LIGHT ILLUMINATED AND FLAMES WERE NOTED FROM THE GENERATOR VENT. MAINTENANCE REPLACED THE LEFT AC GENERATOR AND THE AIRCRAFT WAS RELEASED FOR SERVICE.