What was found
DURING APPROACH TO IAD WE NOTICED A SMOKE LIKE ODOR IN THE COCKPIT. IT SEEMED TO INTENSIFY AS APPROACHED THE RUNWAY. NFORMED APPROACH AND THEY DECLARED AN EMERGENCY FOR US. SMELLED LIKE BURNED WIRE NEAR WINDSHIELD. NO ODOR WAS NOTICED BY THE PAX. INVESTIGATED AND FOUND LOOSE TERMINAL AT UPPER AFT CORNER OF PILOTS WINDSHIELD. THE INSULATION HAD MELTED APPROX .5 INCH DUE TO LOOSE TERMINAL. REPAIRED WIRE & TERMINAL WINDSHIELD. OPS CHECK GOOD.