What was found
AFTER ELECTRICAL RESET, APU START AND ALL SYS TESTS PASSED, SHORTLY AFTER GOT INDICATION OF BURNING/ELECTRICAL BURNING SMELL IN FLT DECK WITH EMERGENCY LIGHTS TRIPPING ON AND WILL NOT GO OFF. PERFORMED GVI OF CAPTS AND FO RELAY PANELS NO DEFECTS NOTED, PERFORMED GVI OF CB PANEL NO DEFECTS NOTED, CHECKED FLASHLIGHTS NO DEFECTS NOTED. RAN APU + APU BLEED WITH PACKS ON AND AC FULLY POWERED AND NO DEFECTS NOTED AND COULD NOT DUPLICATE PROBLEM AFTER RUNNING FOR 30 MINUTES.