What was found
SHIP 9543 -DIV/DE- THE CREW DIVERTED THE AIRCRAFT TO MEM AND DECLARED AN EMERGENCY ON APPROACH DUE TO THE RIGHT GENERATOR FAILING AND THE APU ALREADY ON MEL DEFERRAL. CORRECTIVE ACTION: MAINTENANCE REPLACED THE APU ECU, THE RIGHT PCDU, THE LEFT & RIGHT BUS TIE RELAYS, AND THE RIGHT GENERATOR RELAY. OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT RETURNED TO SERVICE. (LP #4680524)