What was found
FLT 592, MCO-HPN, AIR RETURN TO MCO, F/A REPORTED SMELL OF ELEC SMOKE IN AFT GALLEY, SHUT OFF CABIN AND IFE POWER. PERFORMED FIM TASK 21-20-00-810-801-A. RAN BOTH ENGINES W/BLEED. RAN APU WITH BLEED. RAN PACK 1&2 ALTERNATELY TO ISOLATE. CHECKED FWD MID AND AFT AVIONICS COMPT, TURNED ON IFE SYS NO ELEC SMOKE SMELL NOTED. OPENED AND INSPECTED LTV EER. MONITORED SYSTEM FOR APPROX 2 HOURS, COULD NOT DUPLICATE DISCREPANCY. LTV COMPONENTS AND SYSTEM OPS CHECK/TEST NORMAL. REF M/M 44-20-10.