What was found
PILOT REPORTED DURING FLIGHT THE LT GEN HOT ANNUCIATOR LIGHT AND MASTER CAUTION LIGHT ILLUMINATED. LEFT ENGINE WAS SHUT DOWN SINCE THE GENERATOR HOT ANNUNICATOR LIGHT WOULD NOT GO OUT. UPON RETURING TO DEPARTURE AIRPORT,RIGHT STARTER/GENERATOR FAILED. ON THIS AIRPLANE WITH BOTH GENERATORS OFF LINE AND THE LANDING GEAR IN THE RETRACTED POSITION, THE SECONDARY BUS WILL AUTOMATICALLY DISCONNECT, REDUCING PILOT WORK LOAD. PILOTS WERE ABLE TO RESET THE RIGHT GENERATOR AND SECONDARY BUS, TO HAVE THE RT GEN FALL OFF LINE AFTER 2 MINUTES AFTER RESETTING. REPLACED LT STARTER/GEN SYSTEM. NO PROBLEM WAS FOUND WITH RT GEN SYSTEM.