What was found
EN ROUTE TPA TO CLT, THE RIGHT GENERATOR BUS OFF LIGHT ILLUMINATED IN DESCENT - RESET WAS SUCCESSFUL. THE APU WAS ON MEL49-01A AT THE TIME. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE CURRENT TRANSFORMER BAD ON THE NR 2 ENGINE. REMOVED AND REPLACED CURRENT TRANSFORMER IAW AMM 24-21-71-404-015. CLEARED APU MEL 49-01A WITH THE FOLLOWING ACTION: RAN APU LOADED AND UNLOADED. ALL APU ELECTRICAL PARAMETERS ARE NORMAL AS PER AMM 24-21-81-705-001. AIRCRAFT OK FOR SERVICE.