What was found
IN CRUISE FLT CREW NOTICED AN ELECTRICAL ODOR IN COCKPIT. ODOR SEEMED TO DISSIPATE AFTER BATTERY & MASTER GENERATOR SWITCHES WERE PLACED IN EMERGENCY POSITIONS. EMERGENCY DECLARED & ACFT LANDED. MX INSPECTED BATTERY WIRING, AREA BEHIND LAV PANEL, AND THE DUCTING IN THE REAR BAY AREA WITH NO NOTED DEFECTS. WIRING FOR LT & RT STARTER / GENERATORS INSPECTED, NO DEFECTS. ENGINES OPERATED WITH BLEED AIR SYSTEMS RUNNING. RT WINDSHIELD HEAT CURRENT SENSOR (L102S) TERMINAL-B & APPROX 2 FT OF WIRE FOUND TO OVERHEAT & MELT WITH WINDSHIELD HEAT ON. ALL OTHER SYS OPERATED NORMALLY. RIGHT WINDSHIELD CURRENT SENSOR & WIRE 4045A2-L102SB REPLACED. WINDSHIELD HEAT SYS FUNCTION CHECK NORMAL. ACFT RETURNED TO SERVICE.