What was found
(CAN) PILOT NOTED ELEC BURNING ODOR. CREW DISENGAGED AC ELEC MASTER. FOUND TRANS & WIRING WARM TO TOUCH. WIRES MELTING A PLASTIC ABRASION SHIELD. DAMAGE DETECTED IN WIRING WITH TRANS & WIRES WITHIN SAME BUNDLE. TRANS DISCONNECTED FROM CIRCUIT & CHECKED. DAMAGED WIRING & ABRASION SHIELD WERE REPAIRED & TRANS REINSTALLED. MAINT PERFORMED A LIGHTING CHECK & REPLACED A LINE LAMP MODULE INSTALLED IN FUEL TOTALIZER DISPLAY. LAMP ASSY HAD A MFG DEFECT. DEFECT SHORT CIRCUITED LIGHTING BUSS. RESULTED IN EXCESS CURRENT PRESENT WITHIN SYS, CAUSING TRANS & ASSOC WIRES TO OVERHEAT. CONCLUDED THAT THE FAULTY BULB INITIATED PROBLEM A POSSIBLE FLAW IN CIRCUITS WIRING CAUSED WIRING FAILURE. DEFECTIVE CIRCUIT.